... ,L/C ASTMA333 Gr.6 seamless steel pipe sch80 manufacturer First, the details of our products. API 5L ... per customer's requirements;with FBE internal coating for water steel pipes.MaterialA53(A,B),A106(A,B), ... X70, etcUsagefor petroleum/ natural gas pipeline , for conveying water,drainage,coal gas, mineral slurry and other low-middle ... Tianjin , China ASTMA333 Gr.6 seamless steel pipe sch80 manufacturer