... enough for processing the Petroleum steel pipe thread. As professional Sucker Rod,Tubing,Drill pipe machine, the machine is perfectly suitable for Petroleum industry ... that is, 5/8" to 20"Recently, the dedicated thread pipe machine can be remoulded by nomalMachine, but when the main axis ... back are equiped long routed Centering pneumatic chuck1.2,.Rolling end face, R3.2 circular arc, unload groove.1.3, ...