... Major Technical Specifications and Machining Range of the Machine:1 . Product overviewBTC2085n CNC Machine For Steel pipe (Sucker Rod,Tubing,Drill ... pipe thread. As professional Sucker Rod,Tubing,Drill pipe machine, the BTC2085n is perfectly suitable for Petroleum industry and ... routed Centering pneumatic chuck1.2,.Rolling end face, R3.2 circular arc, unload groove.1.3, Rolling friction thread; Rolling ...