Seamless Carbon Steel Pipes .
STANDARDS
BS1387 / 1985 DIN 2391/1629 / 17175/2440/2448/2458 standard
ANSI/ASME ASTM A234 WPB / ASTM A 106, A53, API 5L , ASTM A312 JIS G3452/3457
Seamless Carbon Steel Pipes