{
 "id": "9.06a",
 "slug": "structure-steel-precast-envelope-site-equipment-steel",
 "url": "/parts/building-shell-site-and-construction/structure-steel-precast-envelope-site-equipment-steel",
 "name": "Steel",
 "qualifiers": null,
 "layer": {
  "id": 9,
  "name": "Building shell, site & construction"
 },
 "parent_id": "9.06",
 "children": [],
 "summary": "Structural and rebar steel, including data-center-specific and modular steel products, used to frame the building.",
 "description_md": null,
 "ai_delta": null,
 "bottleneck_status": null,
 "scale_tiers": [],
 "density_modes": [],
 "scale_notes": null,
 "flow": [
  "shell"
 ],
 "companies": [
  {
   "company_id": "cleveland-cliffs",
   "name": "Cleveland-Cliffs",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "CLF",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "commercial-metals",
   "name": "Commercial Metals",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "CMC",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "gerdau",
   "name": "Gerdau",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "GGB",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "nucor",
   "name": "Nucor",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "NUE",
   "product_note": null,
   "note": "data-center steel and modular",
   "source_url": null
  },
  {
   "company_id": "steel-dynamics",
   "name": "Steel Dynamics",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "STLD",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "schuff-dbm",
   "name": "Schuff/DBM",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "zekelman-atlas-tube",
   "name": "Zekelman/Atlas Tube",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  }
 ]
}