... .Stainless steel,carbon steel 2.large diameter bender 3.NC bending,3D Tube and pipe bending machine/bender1.Stainless steel,carbon steel2 ... frequency pipe bender is rotating the pipes by rocker to bend pipes, and the bending steel radius depends on the length of ... In recent years, with aircraft terminal, the railway station tents and sports venues, exhibition center, large factory etc. Large top frame ...