{
    "code": "321",
    "title": "Flat Glass",
    "sic_manual": "OSHA SIC Manual",
    "level": "Industry group",
    "major_group_code": "32",
    "parent_code": "32",
    "parent_title": "Stone, Clay, Glass, and Concrete Products",
    "plain_english_definition": "SIC 321 - Flat Glass is an SIC industry group within SIC 32 - Stone, Clay, Glass, and Concrete Products. It groups SIC 3211 - Flat Glass.\n\nUse SIC 321 when referring to this industry group as a whole. When the establishment's specific activity is known, use the appropriate 4-digit SIC industry within the group.",
    "summary_plain": "",
    "official_definition": "",
    "official_source": "https://www.osha.gov/data/sic-manual/major-group-32",
    "classification_note": "",
    "included_activities": [],
    "excluded_activities": [],
    "confused_codes": [],
    "official_siblings": [
        {
            "code": "321",
            "title": "Flat Glass",
            "url": "https://siccode.com/sic-code/321/flat-glass",
            "label": "Industry group"
        },
        {
            "code": "322",
            "title": "Glass and Glassware, Pressed or Blown",
            "url": "https://siccode.com/sic-code/322/glass-glassware-pressed-blown",
            "label": "Industry group"
        },
        {
            "code": "323",
            "title": "Glass Products, Made of Purchased Glass",
            "url": "https://siccode.com/sic-code/323/glass-products-purchased-glass",
            "label": "Industry group"
        },
        {
            "code": "324",
            "title": "Cement, Hydraulic",
            "url": "https://siccode.com/sic-code/324/cement-hydraulic",
            "label": "Industry group"
        },
        {
            "code": "325",
            "title": "Structural Clay Products",
            "url": "https://siccode.com/sic-code/325/structural-clay-products",
            "label": "Industry group"
        },
        {
            "code": "326",
            "title": "Pottery and Related Products",
            "url": "https://siccode.com/sic-code/326/pottery-products",
            "label": "Industry group"
        },
        {
            "code": "327",
            "title": "Concrete, Gypsum, and Plaster Products",
            "url": "https://siccode.com/sic-code/327/concrete-gypsum-plaster-products",
            "label": "Industry group"
        },
        {
            "code": "328",
            "title": "Cut Stone and Stone Products",
            "url": "https://siccode.com/sic-code/328/cut-stone-stone-products",
            "label": "Industry group"
        },
        {
            "code": "329",
            "title": "Abrasive, Asbestos, and Miscellaneous",
            "url": "https://siccode.com/sic-code/329/abrasive-asbestos",
            "label": "Industry group"
        }
    ],
    "official_children": [
        {
            "code": "3211",
            "title": "Flat Glass",
            "url": "https://siccode.com/sic-code/3211/flat-glass",
            "label": "Industry"
        }
    ],
    "related_naics_codes": [],
    "example_companies": [
        {
            "name": "Cardinal FG Co",
            "url": "https://siccode.com/business/cardinal-fg-co",
            "city": "Portage",
            "state": "WI",
            "reviewed": false
        },
        {
            "name": "Owens Illinois Glass Container Inc",
            "url": "https://siccode.com/business/owens-illinois-glass-container-inc",
            "city": "Streator",
            "state": "IL",
            "reviewed": false
        },
        {
            "name": "Action Glass Co. Inc",
            "url": "https://siccode.com/business/action-glass-co-inc",
            "city": "Ridgewood",
            "state": "NY",
            "reviewed": false
        },
        {
            "name": "More Than Lemons",
            "url": "https://siccode.com/business/more-than-lemons",
            "city": "Holton",
            "state": "KS",
            "reviewed": false
        },
        {
            "name": "Virginia Glass Products Corp",
            "url": "https://siccode.com/business/virginia-glass-products-corp",
            "city": "Ridgeway",
            "state": "VA",
            "reviewed": false
        },
        {
            "name": "True Lite Glass And Aluminum",
            "url": "https://siccode.com/business/true-lite-glass-and-aluminum",
            "city": "San Antonio",
            "state": "TX",
            "reviewed": false
        },
        {
            "name": "US Prestige Group, Ltd",
            "url": "https://siccode.com/business/us-prestige-group-ltd",
            "city": "Flushing",
            "state": "NY",
            "reviewed": false
        },
        {
            "name": "Njpb Glass",
            "url": "https://siccode.com/business/njpb-glass",
            "city": "West Creek",
            "state": "NJ",
            "reviewed": false
        },
        {
            "name": "Exquisite Glass Stone Inc",
            "url": "https://siccode.com/business/exquisite-glass-stone-inc",
            "city": "Astoria",
            "state": "NY",
            "reviewed": false
        },
        {
            "name": "Legrart Co",
            "url": "https://siccode.com/business/legrart-co",
            "city": "Brooklyn",
            "state": "NY",
            "reviewed": false
        },
        {
            "name": "Pacific Flame Glass Work",
            "url": "https://siccode.com/business/pacific-flame-glass-work",
            "city": "Emeryville",
            "state": "CA",
            "reviewed": false
        }
    ],
    "company_count": 182,
    "email_contact_count": 92,
    "phone_count": 162,
    "website_count": 173,
    "database_as_of": "Nov 13, 2026",
    "count_type": "commercial",
    "count_disclaimer": "These are SICCODE.com commercial database counts, not official government establishment totals. Website-Reviewed & Enriched is a separate review of company websites for products, services, markets, and fit.",
    "canonical_url": "https://siccode.com/sic-code/321/flat-glass",
    "json_url": "https://siccode.com/sic-code/321.json",
    "reviewed_by": "Industry Classification Review Team",
    "last_updated": "October 2026"
}