1, seamless steel pipe for liquid 2, Main market: Asia, South America 3, Advantage: Medium and Thick wall pipe seamless steel pipe for liquid 1, We manufacture steel pipes2, Main ... pipe4, High quaility StandardAPI 5CT, 5L; ASTM, BS, JIS, DINSteel GradeAPI 5L Grade B/ASTM A106B, BS 1387O.D.27MM-508MMW.T ...