H-beam assembling, welding and straightening machine is a high-efficiency equipment for the production of h beam. Traditional beam production line requires 5 workers, our 3 in 1 beam production line only needs 2 workers.- assembly, welding and straightening at the same time. The total length of traditional beam production line is about 90m, while 3 in 1 beam production line is about 30m lo, which saves two-thirds of loor area.