| Sand
and Gravel - Kaiser (Hanson) Sand and Gravel
- A-1 Grit
Lath and Accessories - CEMCO
- Western Metal Lath
- Davis
Wire
- Unimast Inc.
- K Lath
- Vinyl Corp
- Plastic
Components
Metal Framing Systems - CEMCO
- Western
Metal Lath
- Dietrich Industries
Roofing Materials
- Johns Manville
- G S Roofing (Certainteed)
- Trumbull/ Owens Corning
Fireproofing
| Cement
- Calaveras
- Kaiser
- Quikrete
Plaster
- La Habra
- National Gypsum
- United States Gypsum
Corrugated Metals - BHP Steel Building Products
Aluminum Extrusions and Specialities
Drywall
& Accessories
- USG
- Georgia Pacific
- National Gypsum
- James Hardy Gypsum
- American Gypsum
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