... mainly composed by uncoiler, straightener, leveler, shear and end welder, horizontal accumulator, forming, welding and sizing mill, computer cutting ... table.main parameters:diameter of welded pipe: 60~165 mmwall thickness of welded pipe: 2~5 mmspeed of tube welding: 15~50 ... m/minpower of major motor: 250 kwhigh frequency power: 400 kwwelcome to inquiry to us. BN114 high frequency straight seam welded ...