Non-powered modular tubular-steel industrial sewing machine stand assembly

1. Scope and Applicability

This candidate covers a separately supplied non-powered modular tubular-steel industrial sewing machine stand assembled from externally finished powder-coated modules. The selected configuration has non-tilting tabletop supports, a horizontally adjustable treadle mounting bar, fixed rubber vibration-isolating feet and a threaded floor-levelling adjustment. Actual drawings/orders must establish the mechanical joint and height-lock architecture. The KESSLER KES-B description supports this configuration family; it does not supply a production inventory or authorize attribution of this assembly route to that manufacturer.

Exclude tabletop, sewing head, drive/control, electrical pedal, thread stand, drawers, casters, tilting supports, electric or spring-assisted lift, four-column variants, generic furniture/building structures, complete sewing workstation, local raw-stock fabrication/coating, installation service, customer sewing, maintenance and end of life. No coverage of the entire CPC44640 class is claimed.

The substantive method addition is separate support-module completeness and sewing-workstation interface, treadle clearance, height-lock/floor-contact acceptance; general fabrication techniques are reused rather than invented. This does not duplicate the complete lockstitch workstation method.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.special-purpose-machinery.industrial-sewing-machine-stand
classification_refs	CPC:3.0:44640; narrower
covered_products	This candidate covers a separately supplied non-powered modular tubular-steel industrial sewing machine stand assembled from externally finished powder-coated modules. The selected configuration has non-tilting tabletop supports, a horizontally adjustable treadle mounting bar, fixed rubber vibration-isolating feet and a threaded floor-levelling adjustment. Actual drawings/orders must establish the mechanical joint and height-lock architecture. The KESSLER KES-B description supports this configuration family; it does not supply a production inventory or authorize attribution of this assembly route to that manufacturer.
excluded_products	Exclude tabletop, sewing head, drive/control, electrical pedal, thread stand, drawers, casters, tilting supports, electric or spring-assisted lift, four-column variants, generic furniture/building structures, complete sewing workstation, local raw-stock fabrication/coating, installation service, customer sewing, maintenance and end of life. No coverage of the entire CPC44640 class is claimed.
representative_product	One accepted stand-only module, same drawing and complete configured structural supply
production_route	Receipt of finished modules; mechanical joining/adjustment; interface/completion acceptance; weighing/release and actual packing
market_state	New assembled accepted stand, before transport disassembly, without tabletop/head/motor or packaging

3. Reference Flow

Field	Value
What	Manufacturing the declared complete stand support module, not sewing textile or providing adjustable-workplace service
How much	1 kg net accepted complete configured stand; a normalized portion of one complete product
How well	Conform to controlled BOM/drawing and signed acceptance plan for interfaces, geometry, adjustment locks, floor contact and completion; no universal load, torque, height or vibration threshold
How long or cycle	One manufacturing/acceptance cycle; no lifetime or sewing output specified
reference_flow_link	finished_machine

Field	Value
Reference amount	1
Reference product flow	Accepted non-powered modular tubular-steel industrial sewing machine stand
Reference flow property	Mass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit group	Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unit	kg
Required qualifiers	stand model; drawing/BOM revision; order/lot; complete module supply; non-tilting tabletop interface and compatible sewing workstation; treadle mounting/clearance; height-lock and floor-levelling configuration; fixed rubber feet and compound; fastener grades/dimensions/coatings; retained module coating; measured net M and calibration; assembly and inspection plan; actual joint settings/test conditions; site/period/count; supplier gates/transport/upstream links; packaging/disassembly exclusions

Declare every qualifier; mass normalization does not imply equivalent support/adjustment performance. The unresolved finished-flow identity must remain blank, not replaced with complete sewing machine or generic steel structure.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	reference product	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	M = accepted net mass of one complete unit of the same configuration in kg; collect using cp_mass.
electricity_units	assembly_electricity; acceptance_electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Use actual meter/provider boundary; convert kWh using 1 kWh = 3.6 MJ and preserve original readings.

M includes the accepted assembled stand and all mandatory retained modules, coating, feet and fasteners of that same configuration. Exclude tabletop, head, optional accessories, transport fixtures and packaging. Retain calibrated scale readings, tare and uncertainty; reconcile any transport disassembly with weighed accepted BOM without replacing M with catalogue weight. No drawing-derived or estimated mass is substituted.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Externally completed and powder-coated stand modules and finished individual fasteners received at assembly site
starting_condition_role	Declared foreground assembly module
product_classification_scope	This candidate covers a separately supplied non-powered modular tubular-steel industrial sewing machine stand assembled from externally finished powder-coated modules. The selected configuration has non-tilting tabletop supports, a horizontally adjustable treadle mounting bar, fixed rubber vibration-isolating feet and a threaded floor-levelling adjustment. Actual drawings/orders must establish the mechanical joint and height-lock architecture. The KESSLER KES-B description supports this configuration family; it does not supply a production inventory or authorize attribution of this assembly route to that manufacturer.
recursive_input_rule	Stop received modules at their exact supplied state; embedded tube/coating/welds are not added as fresh assembly inputs. Rework/internal transfers are not repurchases. A complete purchased stand is outside this assembly route.
upstream_dataset_requirement	Link actual compatible component manufacturing/coating, electricity supply, incoming transport and waste treatment for expanded assessment; unresolved providers remain gaps
disclosure	This is receipt-to-release foreground assembly, not complete cradle-to-gate; disclose outsourcing, supplier states, missing links and exact configuration

rule_id	Applies to	Rule	source_ids
boundary_included	all processes	Include actual in-gate receipt/handling, joining/adjustment, inspection, attributable tools/support activity, rework/rejects and packing. Supplier fabrication/coating is upstream, not silently inside this inventory.
boundary_emissions	all inventory rows	No process emission is presumed for mechanical assembly. Any measured external species or additional chemicals/utility/waste must be added as separate physically specific exchanges with medium, supplier state and real collection. No upstream coating fume is represented as assembly release.
boundary_config	reference product	Only the non-powered fixed-foot non-tilting stand is covered. Adding tabletop/head/lift/tilt/casters changes this product boundary and requires applicability review.	kessler-stand

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
assembly	Receipt and mechanical frame assembly	required	For declared assembly route; individual utilities/waste/packing remain actual conditional exchanges	foreground_process	1 kg accepted stand reference; collect per accepted same-configuration unit
acceptance	Interface, adjustment and completion acceptance	required	For declared assembly route; individual utilities/waste/packing remain actual conditional exchanges	foreground_process	1 kg accepted stand reference; collect per accepted same-configuration unit
release	Net-mass release and actual packaging	required	For declared assembly route; individual utilities/waste/packing remain actual conditional exchanges	foreground_process	1 kg accepted stand reference; collect per accepted same-configuration unit

Process: Receipt and mechanical frame assembly (assembly)

Receive finished powder-coated matched modules; check supply state, fit structural cross-brace/supports, feet and treadle mounting bar, set the order-specific geometry and lock joints under the actual drawing. No local cutting, bending, welding or coating is assumed.

Inputs

Product flows

Powder-coated tubular-steel left telescopic leg module (left_leg)

One left structural module received finished, including its integral welded foot; reconcile part number and retained coating.

• Selected flow: Powder-coated tubular-steel left telescopic leg module
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Powder-coated tubular-steel right telescopic leg module (right_leg)

One matched right module of the same drawing configuration; not raw steel stock.

• Selected flow: Powder-coated tubular-steel right telescopic leg module
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Powder-coated steel rear cross-brace (back_brace)

Received finished rear structural brace; exact length and fixing interfaces from controlled BOM.

• Selected flow: Powder-coated steel rear cross-brace
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Powder-coated steel non-tilting tabletop support rail (top_support)

Each physical support rail, accumulated only for the same part number; supplied tabletop is excluded.

• Selected flow: Powder-coated steel non-tilting tabletop support rail
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Steel horizontally adjustable treadle mounting bar (treadle_bar)

Bar and integral adjustment interface, not an electrical pedal or motor-control system.

• Selected flow: Steel horizontally adjustable treadle mounting bar
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Vulcanized rubber vibration-isolating foot pad (rubber_foot)

Supplier-certified rubber pad mass; rubber compound and metal insert state retained in supplied component identity.

• Selected flow: Vulcanized rubber vibration-isolating foot pad
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Steel threaded floor-levelling foot spindle (levelling_foot)

Received threaded spindle; record adjustment/locking interface without presumed screw dimension.

• Selected flow: Steel threaded floor-levelling foot spindle
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Steel hexagon-head bolt (bolt)

Actual drawing-listed bolt grade, coating and dimensions; weigh supplied count or traceably weighed lots.

• Selected flow: Steel hexagon-head bolt
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Steel hexagon nut (nut)

One exact steel nut specification per dataset exchange; no mixed fastening kit.

• Selected flow: Steel hexagon nut
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Steel flat washer (washer)

Drawing-defined flat washer; separate from bolt and nut mass.

• Selected flow: Steel flat washer
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Alternating current (assembly_electricity)

Only electricity actually used by in-gate tools/lighting/handling, attributed through measurement; upstream coating energy is excluded.

• Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
• Flow property / unit: Net calorific value / MJ
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Post-industrial steel scrap (rejected_steel)

Only actually rejected stand steel transferred as segregated manufacturing waste; coating and rubber removal/contamination disclosed, reuse and returned modules are not waste.

• Selected flow: Post-industrial steel scrap
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_assembly.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_assembly
• Sources: kessler-stand

Elementary flows

Process: Interface, adjustment and completion acceptance (acceptance)

Verify tabletop support/fixing interfaces, treadle mounting position/clearance, height adjustment locks, floor contact/levelling and actual drawing-specified fastener and stability checks; record rework. Test loads and torque values require the controlled acceptance plan.

Inputs

Product flows

Alternating current (acceptance_electricity)

Metered electric gauges or bench activity only if actually used. No sewing-operation test is required for a stand-only product.

• Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
• Flow property / unit: Net calorific value / MJ
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_acceptance.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_acceptance
• Sources: kessler-stand

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Net-mass release and actual packaging (release)

Weigh the assembled accepted stand; reconcile any shipment disassembly to the same complete BOM and acceptance record, then pack the actual shipment.

Inputs

Product flows

Low-density polyethylene foil (PE-LD) (pack_film)

Conditional nonadhesive noncellular unreinforced unlaminated wrapping; other actual packaging must be added as separate precise rows. Exclude from net M.

• Selected flow: Low-density polyethylene foil (PE-LD) 2cecd3a7-d90e-44b4-aec5-1d9dfb907477
• Flow property / unit: Mass / kg
• Amount rule: Apply normalize_mass to q_item; reference_mass; cp_release.
• Value mode: calculated_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: calculated_from_collection
• Collection protocol: cp_release
• Sources: kessler-stand

Waste flows

Elementary flows

Outputs

Product flows

Accepted non-powered modular tubular-steel industrial sewing machine stand (finished_machine)

Complete accepted frame with the declared non-tilting supports, treadle mounting bar, fixed rubber feet, levelling adjustment and all mandatory fastening; no tabletop or sewing head.

• Selected flow: Accepted non-powered modular tubular-steel industrial sewing machine stand
• Flow property / unit: Mass / kg
• Amount rule: 1 kg
• Value mode: fixed_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow; collected per one accepted finished unit
• Basis kind: reference_flow
• Evidence kind: method_formula
• Collection protocol: cp_mass
• Sources: kessler-stand

Waste flows

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_orders	all processes	Separate orders/configurations and station meters to avoid allocation. Unavoidable shared tools, inspection/support electricity require measured causal time/load or documented driver with numerator, idle/rework, accepted same-configuration count and sensitivity. No default mass allocation between differently adjusted stands.	ghg-allocation
allocation_rejects	rejected_steel	Reconcile rejected modules, return, repair and segregated waste; retained rubber/coating contamination disclosed. Sales do not automatically create a co-product or avoided virgin steel credit. Do not apply a recycling benefit without an independently reviewed boundary.	ghg-allocation

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_mass	release	reference product	weighing_record	model; configuration; drawing/BOM revision; serial/lot; accepted net mass M; scale calibration/tare/uncertainty; assembled completion and acceptance linkage	Weigh the accepted complete unit on a calibrated scale, excluding transport packaging; reconcile the same configuration and acceptance record.	kg	each accepted configuration and lot	declared complete production period	assembled stand-only release station	accepted net mass per unit	original scale readings, calibration and complete BOM acceptance
cp_assembly	assembly	individual inventory exchanges	production_record	row_id; configuration; drawing/BOM; lot; accepted units; issue/return/stock; measured quantity/unit; meter coverage; supplier/recipient; inspection/rework	Collect actual net component issues, original meters, actual waste transfer and packaging issues at this station. Reconcile inventory changes, attribute shared loads by real causal records and divide attributable totals by accepted complete units of the same configuration. Keep actual zero, absent exchange and missing record distinct.	kg for mass; MJ for electricity after original kWh conversion	each order/lot and actual exchange	full declared period with stock dates	actual named assembly/acceptance/release station	attributable exchange amount / accepted units	BOM/delivery certificates, meter calibration, measured quantities, actual count and signed inspection/disposition
cp_acceptance	acceptance	individual inventory exchanges	production_record	row_id; configuration; drawing/BOM; lot; accepted units; issue/return/stock; measured quantity/unit; meter coverage; supplier/recipient; inspection/rework	Collect actual net component issues, original meters, actual waste transfer and packaging issues at this station. Reconcile inventory changes, attribute shared loads by real causal records and divide attributable totals by accepted complete units of the same configuration. Keep actual zero, absent exchange and missing record distinct.	kg for mass; MJ for electricity after original kWh conversion	each order/lot and actual exchange	full declared period with stock dates	actual named assembly/acceptance/release station	attributable exchange amount / accepted units	BOM/delivery certificates, meter calibration, measured quantities, actual count and signed inspection/disposition
cp_release	release	individual inventory exchanges	production_record	row_id; configuration; drawing/BOM; lot; accepted units; issue/return/stock; measured quantity/unit; meter coverage; supplier/recipient; inspection/rework	Collect actual net component issues, original meters, actual waste transfer and packaging issues at this station. Reconcile inventory changes, attribute shared loads by real causal records and divide attributable totals by accepted complete units of the same configuration. Keep actual zero, absent exchange and missing record distinct.	kg for mass; MJ for electricity after original kWh conversion	each order/lot and actual exchange	full declared period with stock dates	actual named assembly/acceptance/release station	attributable exchange amount / accepted units	BOM/delivery certificates, meter calibration, measured quantities, actual count and signed inspection/disposition

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalize_mass	all inventory rows	q_ref = q_item / M; q_item = exchange amount per one accepted finished unit; q_ref = exchange amount per 1 kg reference flow.	q_item; M; cp_mass	q_ref

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
configuration_interface	reference product	Require current tabletop mounting pattern/support geometry, compatible head/table workstation, treadle mounting travel/clearance, height lock and levelling configuration; acceptance uses actual controlled drawing, fastener specification and inspection plan. No inferred universal load, torque or vibration performance.	current drawing/BOM, measured interfaces and signed checks
completion_mass	cp_mass	Same drawing/configuration defines complete assembled stand M including feet/adjustment/fasteners and retained supplier coating. Keep separate tabletop/head/accessory supply and shipment packaging outside M. Actual calibrated complete weighing and same-configuration count are mandatory.	original scale/BOM/acceptance/order records
supplier_states	assembly	Verify finished coated modules and exact rubber compound/insert/fastener states. Supplier welding/coating is not a local process. Preserve actual component supply identifiers; add upstream links before claiming extended completeness.	supplier drawings/certificates and gate records
inventory_coverage	all inventory rows	Reconcile net issues, stock changes, accepted count, defects/rework and actual recipient. Add real cleaning chemicals, additional packaging or utilities atomically if used; missing data is not zero.	complete period ledgers and meter/order evidence
scientific_gaps	dataset	No particular producer M, actual joint drawing, manufacturing quantities, acceptance originals, empirical ranges or complete supplier impact datasets have been obtained. These require later foreground acquisition and independent scientific review; a mechanical check does not approve them.	future physical originals and review

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_scope	dataset	Verify the exact stand-only fixed-foot non-powered configuration, finished module route and special tabletop/treadle interfaces; no product applicability from classification alone.	kessler-stand
validate_measurement	all inventory rows	Reference name equals finished output; actual same-configuration complete net M and cp_mass support q_item/M for every non-reference row. Verify public property/unit chain without replacing count/area/volume with Mass.
validate_quality	acceptance	Require actual drawing and signed measured interface/adjustment/fastener/completion acceptance. Missing actual criteria or records remain scientific/acquisition gaps despite structural validity.
validate_boundary	all processes	No duplicated embedded coating/steel, upstream fabrication energy or invented local weld emissions; reconcile actual waste and conditionally used utilities/packing before quantitative-completeness claim.

10. Published Dataset Profile

Field	Value
dataset_role	foreground manufacturing assembly dataset
downstream_use	secondary_dataset; background_dataset only after quantitative completion and independent review
allowed_use	Declared stand input to compatible industrial sewing workstation manufacture
excluded_use	Exclude tabletop, sewing head, drive/control, electrical pedal, thread stand, drawers, casters, tilting supports, electric or spring-assisted lift, four-column variants, generic furniture/building structures, complete sewing workstation, local raw-stock fabrication/coating, installation service, customer sewing, maintenance and end of life. No coverage of the entire CPC44640 class is claimed.
required_metadata	stand model; drawing/BOM revision; order/lot; complete module supply; non-tilting tabletop interface and compatible sewing workstation; treadle mounting/clearance; height-lock and floor-levelling configuration; fixed rubber feet and compound; fastener grades/dimensions/coatings; retained module coating; measured net M and calibration; assembly and inspection plan; actual joint settings/test conditions; site/period/count; supplier gates/transport/upstream links; packaging/disassembly exclusions
required_quality_disclosure	Measured M/uncertainty, exact completed configuration, original acceptance plan/results, period/count/stock/causal allocation, supplied gates, missing upstream links/identities/ranges and scientific review status
update_trigger	Module design, interfaces, lift/foot/support variants, supply completion, coating/compound/fastener state, supplier gate or acceptance plan change

11. Data Sources

Source id	Type	Reference	Used for
kessler-stand	literature	KESSLER, Sewing machine stand KES-B; https://www.kessler-ergo.com/en/sewing-machine_stands_sit-down-and-stand-up-workstations/ ; unpaginated description, technical data, options and versions	Modular tubular-steel stand, tabletop support, treadle adjustment, fixed feet/levelling and supplied coating context. Approximate weight, advertised dimensions/load and performance claims not adopted as measured M or mandatory criteria. Actual joint/assembly route and acceptance require foreground drawings; no exact manufacturer production route inferred.
ghg-allocation	official_guidance	WRI/WBCSD Product Life Cycle Accounting and Reporting Standard2011; https://ghgprotocol.org/sites/default/files/standards/Product-Life-Cycle-Accounting-Reporting-Standard_041613.pdf ; printed63 PDF65 Tables9.1–9.2	Historical general allocation hierarchy; actual causal measurements required, not current product regulation or mass default.