Steel Pipe, ERW Pipe, SSAW manufacturer / supplier in China, offering Warship Asb CCS Lr Platehot Hot Sale Hot and Cold Rolled Building Materials Galvanized Sheet Metal Roofing Price/Gi Corrugated Steel Sheet/Zinc Roofing Sheet, SGCC/Dx51d/JIS/ASTM/G550/Az100/Z275/0.14-3.0mm/Galvanized Steel/Zinc Coated/Galvalume/Gi/Gl/PPGI/Corrugated/Roof/Roofing Iron Sheet/Anti-Fingerprint/Coil, SSAW Steel Pipe/API 5L Psl1/Psl2 Gr. a, Gr. B, X42, X46, X52, X56, X60, X65, X70/ASTM A53 ASTM 139/ASTM A252 Grade 1/2/3 /Nzs 1163 /En10219-1 and so on.