ASTM A106 ASTM A53 Gr B seamless steel pipes OD：12-711mm

Seamless Steel Pipe manufacturer Hebei Xingfeng Steel Pipe Co.,Ltd can manufacture seamless steel pipes from OD: 12mm-716mm and also to be agent and stockist of TPCO&BAO STEEL in North China. 
Standard: ASTM A106,ASTM A53,API 5L, 
　　　　ASTM A179,GB/T8162,GB/T8163,DIN17175,DIN1626
Size: OD: 12mm-716mm
WT: 1.0-55mm