... 3.Length:5-12M BV&SGS High pressure Boiler pipe St45.8 1.OD:21- ... ,34CrMo4,Cr5Mo Alloy steel pipe StandardASTM A213,A200,A335,DIN17175,JIS G3458 G3462, GB5310,GB6479 ... cold rolledSurfacePolished,black,bright.ApplicationElectrical Resistance,Bolier Pipe, Heat Exchanger Tubes,Petroleum and Oil, ... pipe St35.8--Alloy pipe : 35CrMo , 34CrMo4 --Cold rolled steel coil : DC01 , SPCC --Galvanized steel coil : JIS ...