... advanced technology 3.mass stock ductile cast iron seamless steel pipesTechnique: seamless Finish: cold drawn and hot rolled ManufacturerHenan Xinfengyi Enterprise ... A106, A53, A1045, A210 and A5140DIN st42, st45, st35, st37 and st52JIS G3461, G3455, G3456 and G3454GB 8162 & GB 8163Other RequirementsPacking ... Henan Province, 450000, ChinaProduct:Process flow:Warehouse: K10 Ductile Cast Iron Pipe