{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "catalog_version": "2026.1",
  "supplier": "JSC Stone Group",
  "quarry_direct_materials": [
    {
      "sku_series": "JSC-GRN-G654-PADANG-DARK",
      "commercial_name": "G654 Padang Dark / Sesame Black Granite",
      "geological_class": "Fine-Grained Biotite Quartz Diorite / Granite",
      "origin": "Fujian / Jiangxi Captive Concessions, China",
      "technical_parameters": {
        "density_g_cm3": 2.72,
        "water_absorption_astm_c97": "0.19%",
        "compressive_strength_astm_c170": "218.4 MPa (Dry) / 196.2 MPa (Wet)",
        "flexural_strength_astm_c880": "16.8 MPa",
        "freeze_thaw_resistance_en_12371": "Passed 56 cycles without spalling or delamination",
        "slip_resistance_dcof_flamed": "0.74 (Dynamic Coefficient of Friction, exceeds ANSI A137.1 wet 0.42 threshold)"
      },
      "available_surface_finishes": ["Flamed / Thermal", "Bush-Hammered (4-pin, 8-pin)", "Honed Matte (600-grit)", "Polished High Gloss", "Waterjet Brushed", "Chiseled / Split Face"],
      "standard_export_dimensions": [
        "600 x 600 x 20 mm / 30 mm",
        "600 x 300 x 20 mm / 30 mm",
        "800 x 800 x 20 mm / 30 mm",
        "900 x 600 x 30 mm / 50 mm",
        "Custom CNC curved curbing & stair treads up to 2800 mm monolithic span"
      ],
      "recommended_applications": ["High-traffic municipal plaza paving", "Airport concourse flooring", "Subway station cladding", "Commercial curtain wall ventilated facades"]
    },
    {
      "sku_series": "JSC-GRN-G603-HAOBIN-WHITE",
      "commercial_name": "G603 Bellflower White / Sesame White Granite",
      "geological_class": "Medium-Coarse Grained Biotite Microcline Granite",
      "origin": "Jiangxi Mining Reserve, China",
      "technical_parameters": {
        "density_g_cm3": 2.65,
        "water_absorption_astm_c97": "0.28%",
        "compressive_strength_astm_c170": "182.6 MPa",
        "flexural_strength_astm_c880": "14.2 MPa",
        "slip_resistance_dcof_flamed": "0.68"
      },
      "available_surface_finishes": ["Flamed", "Pineapple Rough Chiseled", "Honed", "Polished", "Grooved Anti-Slip"],
      "recommended_applications": ["Cost-effective mega-project civic paving", "Tactile blind stones", "Railway platforms", "Monolithic curbs"]
    },
    {
      "sku_series": "JSC-LMS-MOCA-CREAM",
      "commercial_name": "Moca Cream Architectural Limestone",
      "geological_class": "Bioclastic Calcarenite Sedimentary Limestone",
      "technical_parameters": {
        "density_g_cm3": 2.38,
        "water_absorption_astm_c97": "4.2%",
        "compressive_strength_astm_c170": "84.5 MPa",
        "flexural_strength_astm_c880": "9.1 MPa"
      },
      "grain_orientations": ["Vein Cut (Parallel linear bedding)", "Cross Cut (Cloud-like fleuri pattern)"],
      "recommended_applications": ["Exterior rainscreen cladding with rear drainage cavity", "Interior feature walls", "Luxury boutique hotel lobbies"]
    },
    {
      "sku_series": "JSC-ENG-HONEYCOMB-PANEL",
      "commercial_name": "Ultra-Thin Stone Aluminum Honeycomb Composite Panel",
      "structure": "4mm to 6mm natural stone veneer + aerospace-grade 3003-H24 aluminum honeycomb core (15mm - 25mm) + 1.0mm aluminum backing sheet bonded with continuous polyurethane structural epoxy",
      "technical_parameters": {
        "deadweight_kg_m2": 16.5,
        "conventional_stone_weight_savings_percent": "70% weight reduction compared to 30mm solid dimensional stone (82.5 kg/m²)",
        "wind_load_capacity": "Exceeds 8.0 kPa hurricane negative pressure resistance",
        "impact_resistance_astm_e1996": "Level D missile impact passed (no stone veneer detachment)"
      },
      "recommended_applications": ["Super high-rise curtain walls exceeding 150 meters", "Elevator cab wall lining", "Luxury yacht & cruise ship interior bulkheads", "Seismic retrofitting"]
    },
    {
      "sku_series": "JSC-CIV-DRAIN-GRATE",
      "commercial_name": "Monolithic CNC Slotted Granite Trench Drain Grates",
      "material": "High-density solid G654 / G603 granite",
      "engineering_specifications": {
        "slot_aperture": "6mm to 8mm ADA compliant narrow heel-proof longitudinal slots",
        "load_bearing_class_en_124": "Class D400 (400 kN test load suitable for heavy vehicular roadways, fire lanes, and airport service aprons)",
        "thermal_expansion_delta": "Matches adjacent granite pavers, completely eliminating iron grate corrosion, thermal expansion buckling, and rattling noise"
      },
      "recommended_applications": ["Pedestrian shopping promenades", "Five-star hotel entry drop-offs", "Heritage conservation streetscapes", "Public botanical gardens"]
    },
    {
      "sku_series": "JSC-TRZ-INORGANIC-PRECAST",
      "commercial_name": "Inorganic Vacuum-Pressed Architectural Precast Terrazzo (DY005, MB188)",
      "composition": "52.5 high-performance white Portland cement + graded Italian Carrara marble chips & quartz aggregates (zero VOC, zero polyester resin)",
      "technical_parameters": {
        "density_g_cm3": 2.50,
        "compressive_strength_en_13748": "105 MPa",
        "fire_classification_en_13501": "Class A1 Non-combustible (Euroclass)",
        "color_consistency": "Delta E < 0.5 across 10,000 m² continuous production runs"
      },
      "recommended_applications": ["Subway concourses", "International airport terminals", "Luxury flagship department stores", "Universities and healthcare facilities"]
    }
  ],
  "container_payload_engineering_matrix": {
    "ocean_container_type": "20ft General Purpose Standard Freight Container (20GP)",
    "maximum_gross_container_weight_limit_kg": 26500,
    "tare_weight_allowance_timber_crates_kg": 1000,
    "maximum_net_stone_payload_kg": 25500,
    "thickness_yield_schedule": [
      {
        "thickness_mm": 15,
        "unit_weight_kg_m2": 41.25,
        "max_safe_area_m2": 618,
        "crate_count": "22 - 24 crates"
      },
      {
        "thickness_mm": 20,
        "unit_weight_kg_m2": 55.0,
        "max_safe_area_m2": 463,
        "crate_count": "18 - 20 crates"
      },
      {
        "thickness_mm": 30,
        "unit_weight_kg_m2": 82.5,
        "max_safe_area_m2": 309,
        "crate_count": "14 - 16 crates"
      },
      {
        "thickness_mm": 50,
        "unit_weight_kg_m2": 137.5,
        "max_safe_area_m2": 185,
        "crate_count": "10 - 12 crates"
      }
    ]
  }
}