Steel Structure, Metal Building Materials, Welding Wires manufacturer / supplier in China, offering Coastal-Resistant Hot-DIP Galvanization Steel Purlins for Seaside Buildings Salt-Spray Resistant, Durable Roof Support Structures for Coastal Regions, Galvanization-Treated Steel Purlins for School and Hospital Roofs Safe, Long-Lasting, Rust-Proof Framing Parts for Public Infrastructure, Heavy-Gauge Galvanization Steel Purlins for Logistics Center Roofs Load-Bearing, Weatherproof Support Beams for High-Traffic Commercial Areas and so on.