... outer teeth: 50mm FR-50*50A-03 Hydraulic rolling machine, Automatic pipe threading machineMax length of cutting -inner teeth30mmMax ... 6, Automatic feeding device is optional.7, rolling shape: rolling thread, textured, ruled, rolling light, cross knurling, roll bars, rolling groove, ... version manual and matching tools enclosed for one machine.Contract amendmentAny changes for the contract clauses, a ...