... Major Technical Specifications and Machining Range of the Machine:1 . Product overviewBTC2085n CNC Machine For Steel pipe (Sucker Rod,Tubing,Drill ... 2 , 1 1/8, 2.Recently, the dedicated thread pipe machine can be remoulded by nomalMachine, but when the main ... R3.2 circular arc, unload groove.1.3, Rolling friction thread; Rolling friction thread sucker rod with mist lubrication has improved the surface ...