{
  "schema_version": 1,
  "id": "pcr.metal-products-machinery-and-equipment.special-purpose-machinery.manure-and-fertilizer-application-machinery",
  "title": {
    "en-US": "Manure and fertilizer application machinery manufacture",
    "zh-CN": "粪肥与肥料施用机械制造"
  },
  "status": "candidate",
  "pcr_kind": "product_category_rule",
  "content_maturity": "authored_methodology",
  "version": "0.1.0",
  "domains": [
    "metal-products-machinery-and-equipment"
  ],
  "modules": {
    "core": [
      "pcr-minimum-content",
      "unit-of-analysis",
      "reference-flow",
      "inventory-flow-taxonomy",
      "system-boundary",
      "allocation",
      "data-quality",
      "validation-rules"
    ]
  },
  "target_entities": [
    "flow",
    "process",
    "lifecyclemodel",
    "dataset"
  ],
  "languages": {
    "canonical": "en-US",
    "available": [
      "en-US",
      "zh-CN"
    ]
  },
  "translation_status": {
    "zh-CN": "aligned"
  },
  "classification_refs": [
    {
      "system": "CPC",
      "version": "3.0",
      "code": "44114",
      "title": "Manure spreaders and fertilizer distributors",
      "mapping_type": "narrower"
    }
  ],
  "review_metadata": {
    "scientific_review": "pending",
    "semantic_boundary_decision": "New bounded category for mounted/trailed solid or semi-solid manure and granular fertilizer implements; excludes liquid applicators and carrier vehicles. No overlapping material PCR was found in material index; legacy leaf remains untouched. Classification reference is context, not mapping acceptance. The old leaf ID is a terminal classification-coverage alias under ADR 0003; it is neither promoted nor followed. CPC44114 has no accepted positive edge in the current mapping.",
    "inventory_contract": {
      "atomic_flows": "v1",
      "localized_flow_names": "tiangong_zh_v1"
    },
    "unresolved_flow_identities": [
      {
        "row_id": "steel_sheet",
        "selected_flow": "Hot-rolled non-alloy steel sheet",
        "reason": "Public candidate ce3ac926 has non-alloy name but alloy-steel description; other sheet records have localized-name contradictions or incompatible route. No unambiguous sheet identity selected."
      },
      {
        "row_id": "stainless_sheet",
        "selected_flow": "Cold-rolled stainless steel sheet",
        "reason": "Ordinary cold-rolled stainless sheet scope is not matched by further-worked product add37984; other candidates have conflicting EN/ZH identities."
      },
      {
        "row_id": "solid_wire",
        "selected_flow": "Copper-coated solid carbon-steel welding wire",
        "reason": "Search finds copper wire, electrical solid wire and coating-service identities; none confirms copper-coated solid carbon-steel welding consumable."
      },
      {
        "row_id": "argon",
        "selected_flow": "Argon gas for welding",
        "reason": "English and Chinese argon searches returned unrelated pharmaceutical identities. Pure welding argon identity not confirmed; not a gas-mixture selector."
      },
      {
        "row_id": "caustic",
        "selected_flow": "Sodium hydroxide cleaning reagent, supplied concentration declared",
        "reason": "Available public product candidate specifies 95–98% purity while foreground supplied concentration is not known. Other candidates include elementary sodium hydroxide and 30% solution; no silent concentration substitution."
      },
      {
        "row_id": "phosphate",
        "selected_flow": "Zinc dihydrogen phosphate conversion-bath reagent",
        "reason": "Candidates are generic phosphorous salts or other substances, not confirmed zinc dihydrogen phosphate with hydration/concentration state."
      },
      {
        "row_id": "epoxy_primer",
        "selected_flow": "Waterborne epoxy cathodic electrodeposition primer",
        "reason": "Available electrodeposition candidate is phenolic baking primer, not verified waterborne epoxy cathodic primer."
      },
      {
        "row_id": "alkaline_effluent",
        "selected_flow": "Spent aqueous alkaline cleaning solution",
        "reason": "Available candidate specifies 15% NaOH / 85% water and neutralization treatment, incompatible with unknown composition spent cleaning solution transferred before treatment."
      },
      {
        "row_id": "electrodeposition_effluent",
        "selected_flow": "Electrodeposition rinse wastewater",
        "reason": "Search does not confirm a matching segregated rinse-wastewater identity and actual composition; electrodes and deionization apparatus are not wastewater."
      },
      {
        "row_id": "powder_residue",
        "selected_flow": "Discarded dry powder-coating overspray",
        "reason": "Candidate 363302a6 has Aluminium content as reference property; alternate 9aa53a82 is a China-specific at-plant waste identity, not selected before site/geography is established."
      },
      {
        "row_id": "gearbox",
        "selected_flow": "Fertilizer-spreader mechanical gearbox",
        "reason": "Search candidates are wind-turbine gearboxes, not fertilizer-spreader mechanical gearboxes."
      },
      {
        "row_id": "hydraulic_cylinder",
        "selected_flow": "Complete hydraulic cylinder",
        "reason": "Search candidates identify machined cylinder parts/blanks/kitted subcomponents, not a complete cylinder."
      },
      {
        "row_id": "pto_shaft",
        "selected_flow": "Guarded agricultural power-take-off shaft",
        "reason": "Search candidates include agricultural machinery and axle assemblies but do not establish a complete guarded agricultural PTO shaft."
      },
      {
        "row_id": "roller_chain",
        "selected_flow": "Steel apron conveyor chain",
        "reason": "English, Chinese and apron-specific searches did not confirm the steel apron-conveyor chain; wind-turbine drive and rubber conveyor belts are different products."
      },
      {
        "row_id": "ball_bearing",
        "selected_flow": "Steel radial ball bearing",
        "reason": "Candidate wind-turbine pitch bearing and bearing cage are not an installed steel radial ball bearing."
      },
      {
        "row_id": "fastener",
        "selected_flow": "Carbon-steel bolt",
        "reason": "Bolt/fastener search did not establish one unambiguous carbon-steel bolt identity matching grade and coating."
      },
      {
        "row_id": "hdpe_floor",
        "selected_flow": "High-density polyethylene floor panel",
        "reason": "Candidate HDPE sheet is a 2 mm Korean soil-remediation liner with area reference; unspecified raw HDPE for air-stripper packing is not a manufactured floor panel. Actual panel resin requires supplier confirmation."
      },
      {
        "row_id": "control_unit",
        "selected_flow": "Agricultural spreader electronic control unit",
        "reason": "Public ff5a65c8 is machine-tool controller scope; cfe83c27 describes internal electronic components, not the complete configured agricultural spreader controller."
      },
      {
        "row_id": "pack_board",
        "selected_flow": "Corrugated paperboard protective pad",
        "reason": "Candidate 8bde297e requires specified C/E/F type, fibre content and recycled material; optical-assembly cardboard and fixed-fibre boxes cannot identify an unspecified protective pad."
      }
    ],
    "unresolved_evidence": [
      "Chemical recipes, net mass, utilities, test media, installed-component BOM and service life must not be inferred from manufacturer examples. Site data required before dataset completeness.",
      "Scientific review and independent translation review remain pending."
    ],
    "identity_rejections": [
      "ce3ac926-5d6f-4558-9edc-67179d93dde4: non-alloy name but alloy steel description; do not use.",
      "363302a6-f381-4cc2-a581-ab4e661580d2: reference property Aluminium content, unsuitable for kg dry overspray.",
      "ff5a65c8-7726-48b4-b794-6bacd21ab77e: machine-tool controller scope, unsuitable for agricultural controller.",
      "7eb742f8-341b-4ed6-8976-c188f75417e0: 2 mm soil-remediation liner on area basis, unsuitable for HDPE floor panel.",
      "add37984-82d6-4c91-85e3-9911c0135944: further-worked stainless product, not ordinary cold-rolled stock.",
      "95–98% caustic identity does not cover unknown concentration cleaning reagent."
    ]
  }
}