The welded pipe production line a high degree of automation, high frequency welding stability, high adjustment precision, thus ensuring the products are in conformity with the international standard. The unit can produce thickness (1.0mm-3.0mm), length (5.5m-12m) of the circular pipe, square and rectangular tubes. Round pipe 16mm-48mm, Square pipe 13mm×13mm-40mm×40mm，Rectangular pipe 20×10mm-50×30mm.