China Supplier ERW Black Steel Pipe Tianjin Huaruitai International Trading Co., Ltd. Type:WeldedTechnique:ERWMaterial:Carbon SteelSurface Treatment:BlackMOQ:5tonsPacking:Bundle Packing Base Info Model NO.:Q195 Q235 Q345Standard:API ,BS En10296,ASTM A53-2007,GB,T 9711.1-1997,GB,Length:3-12mPipe End:Plain End, Bevelled End Description Overview Detailed Photos Packaging & ShippingCompany ProfileCertifications Pre:AISI ASTM SAE Standard 1050 Grade Flat Steel Wire Next:ASTM AISI SAE 1055 Grade Flat Steel Wire