... 4: Bending steel pipe bending machineWe supply rolling pipe bending machine with round & square bending formers. The rolling pipe bending machine is applicable for ... , 22, 25, 30, 38, 40, 50mm3) Wall thickness of pipe: 0.5mm - 2mm4) Vol/phase/frequency: 220/380Voltage, 50-60hz ... to order)Straightening and cutting speed(variable speed,with three-steps speed)m/min70-100-130Linearity the steel bars after ...