As one of the leading seamless pipe manufacturers, we manufacture cold drawn seamless steel pipes and hot rolled seamless steel pipes in standards of API 5L, ASTM A53, ASTM A106, ASTM A335, ASTM A213, ASTM A179, ASTM A192, ASTM A210, ASTM A333, ASTM A519, DIN 17175, DIN 1629, DIN 2391, EN 10216, EN 10210, BS 3059, JIS G3454/3455/3456