Place of Origin:Hebei China (Mainland) Standard:GB Material: DIN: St45.8 st37 St52.4 ASTM: A234 A403 A420 A105 A106 A182 A694 A860 A350 A335 A213 A250 A210 A333 API 5L GB:10# ...
Hebei Ahad Tubeline Co., Ltd. [Mechanical Parts & Fabrication Services] [Flanges]