Customized Metal Parts, Welding Parts, Weathering Steel Plate manufacturer / supplier in China, offering Cwb Certification Effortless Assembly Lightweight Steel Frame Booth Roof Trusses for Factory Buildings Structure, Heavy-Duty Galvanized Cwb Welding Lightweight Steel Frame Steel Structure Roof Truss for Facroty Building, High-Quality Prefabricated Light Steel Roof Truss for Industrial Buildings - Customizable Span & Load Capacity and so on.