carbon seamless steel pipe 1.wall thickness:2mm-40mm 2.size:1/2inch- ... 5L carbon seamless steel pipewe mainly produce carbon seamless steel pipe that diameter from 1/2 inch to 12 inch, ... in the fields offood processing, medicine making, petro-chemical, chemical, machine building, power, auto-making, ship building etc.ASTM A519 seamless ... have any inquiry ,please inform me . carbon seamless steel pipe