... 2.WT:1-60MM 3.Length:5-12M BV&SGS High pressure Boiler pipe St45.8 1.OD:21-711MM2.WT:1-60MM3 ... rolled,cold rolledSurfacePolished,black,bright.ApplicationElectrical Resistance,Bolier Pipe, Heat Exchanger Tubes,Petroleum and Oil,Chemical Industry, Energy sources, Metallurgy, ContructionPackageIn Bulk ... : Ral colour --Corrugated / roofing sheet --Angle steel/H&I Beams High pressure Boiler pipe St45.8