... -1995ASTM SA106DIN17175-798-1240OD*1-200WTFor manufacturing the high-pressure bolier heat pipes,containers and steam vessel pipes High ... oil refinery furnace tubes,heatexchanger tube and pipesLow-medium pressure boiler pipe 10#,20#,16Mn ... 1240OD*1-200WTFor manufacturing all kinds of structure low-medium pressure boiler and locomotive boilerTransmission fluid tube 10#,20#,ASTM A106A, ...