... ,DIN, JIS standard thicknessLengthFixed: 3.0 , 5.8 , 5.85 , 5.9 , 6.0 ,11.8 , 12.0m. Random length: 5-12mStandardASTM ... B,X42,X46,X52,X60, X65ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4STP G38,STP G42 ... ,STPT49,STS49ApplicationLow and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and ...