- Catnic
 - Manufacturer and supplier of steel lintels, stainless steel mesh, and other building products and components. - Design and Build with Metal
- Dedicated to delivering news and information about metal construction products such as metal roofing, metal wall systems, metal buildings, and cold-formed steel framing.
- Empire Steel Erectors
- Specialises in structural steel and concrete tiltwall erection.
- Roll Formed Parts and Shapes
- Directory of manufacturers of roll formed parts and materials.
- SteelAds.com
- Offers ads and access to online global trading information of immediate value to sellers, buyers, agents, dealers, and other parties in respect to steel, metals, ores, and other commodities of international trade.
- Unistrut
- Offers a wide range of metal framing systems and applications.
- US Steel Construction
- Supplier of coated steel sheet products for use in roofing, siding, and framing applications.
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