We produce full series of seamless steel pipes 1. Seamless Steel pipe2. manfuacturing method: cold-drawn, hot-rolled, hot-expanded3. Standard&material: ASTM A53 Gr.A/B, ASTM A106 Gr.A/B/C,ASTM A179,ASTM A192,ASTM A210 A1/C,ASTM A213 T11,T12,T22,ASTM A335, ASTM A519 SAE1010,SAE1020,SAE1045,SAE4130,SAE4140, API 5L Gr.B,X42,X46,X52,API 5CT J55,K55,and equivalent standard&material.4. OD:10mm-820mm W. ...