China API X52 PSL1 Seamless Steel Pipe Supplier Provides API X52 PSL1 Seamless Steel Pipe, 219.1mm x 9.5mm, Black, Suitable for High Pressure Conditions.
China DIN 17175 X20CrMoV121 Seamless Pipe Manufacturer Offers X20CrMoV121 Stainless Stemless Pipe According to DIN 17175, 51mm x 4mm, Polished Finished.