Steel Pipe, Steel Coil, Steel Sheet manufacturer / supplier in China, offering Customized 1"-40" Od 3mm-28mm Wall Thickness GB/T 3091 ASTM A53 JIS G3444 DIN 2440 Wear-Resistant Heavy Machinery Manufacturing Hot Rolled Carbon Steel Pipes, Heavy-Duty 16" 24" 30" Schedule 40 Od 6mm-35mm Wall Thickness ASTM A106 GB/T 8163 En 10216 DIN 2448 Pressure-Resistant Gas Pipeline Seamless Carbon Steel Pipes, Durable 2"-36" Od 4mm-28mm Wall Thickness ASTM A106 Gr. B GB/T 9948 En 10216 DIN 17175 Wear-Resistant Hydraulic Drill Rig Seamless Steel Pipes and so on.