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A36)ASTM (Q235B/Q345B)GB S355JR(EN) Main Frame:Welded H Steel Beam, Steel Truss:Secondary Frame:C&Z Purlin, Brace:Wall Cladding:Steel Color Sheet, Sandwich Panel:Surface Treatment:Hot Dip Galvanized And Painted:Performance:Safety, Water-proof, Sound Insulated Hear-preservation Etc. High Light:corrugated frp panels, fiberglass
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According to GB/T 1591 2008, Q345 material has 5 quality grades:Q345A, Q345B, Q345C, Q345D and Q345E. Q345 steel has good weldability, cold & hot workability and corrosion resistance. Widely used in bridges, ships, boilers, pressure vessels, petroleum storage tanks, lifting transport machinery and other high-load welded structural parts.
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