We mainly produce and export ERW (1/2"TO20")seamless(1/2"-30"), Galvanized steel pipe and pipe fittings around the world. the standards include API 5L, API 5CT, ASTM A 53, ASTM A106, DIN17175, EN10204 and GB/T9711, GB/T3091, GB/T8163 etc. the steel grades include Q235, Q345, 10#,20#, 45#, St37,St 52 and B, X42, X46, X52, X56, to X70, H40, J55, K55, N80.