... 60mmMaterial: ASTM A53, ASTM A106,,10#, 20#, 45#, 16Mn, A25,A25P,A,B,X42,X46, X52,X56,X60,X70 C20, C45, St52, GB8162, GB8163, GB9711 ... mode: Hot-Rolled or Cold-Drawn Payment Terms: T/T and L/CMin Order Qty: 5MTSupply Ability: 5000~8000MT/month Trade ... , square tube, ERW pipe and fittings, please feel free to contact us. API 5L/5CT ASTM A106 GR.B/A53 GR.B Seamless Steel Pipe