... steel pipe with API 5L PSL1 and PSL2 2)ASTM A106,ASTM A53 3)1/4 inch to 30 inch. ... pipe with API 5L PSL1 and PSL2 2)ASTM A106,ASTM A53 3)1/4 inch to 30 inch. ... of the products we are supplying can reach the international standard like: ASTM, JIS, DIN, EN, API, BS,We browsed ... facilities is also realized in accordance with the international standards such as TS, DIN, AWWA, ASTM, BS, UNI, JIS, GOST, ANSI, ...