Steel pipes - Công ty Cổ phần Thương mại và Tư vấn TânCơ

No	Types	Standard	Grade
1	Welded steel pipe: Straight welding & spiral welding	GB/T3091, GB/T9711.1, API5L, ASTM A53, A335, A500, A671, EN10255, DIN2440, JIS G3452, BS1387, EN39, BS1139, ASTM A500.Gr.A.B.C.DIN2394/2395, JISG3444;JISG3446,	Q195, Q215, Q235, Q345B, X42, X56, P11, ST35, ST52, S235JR, STP430, X65…
2	Seamless steel pipe	GB/T8162, GB/T8163, API5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454	20#, Q345B, GR.B, X42, ,56, X65, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, STP430S…