Dezhou Guanlu deep hole drilling machine.

Burnishing process hole roughess: 0.04-0.08um

Hole deviation：4.3meters job,inner hole 359mm,exit wall thickness tolerance1.5mm. customers is more than satisfied.

Dezhou Guanlu BTA deep hole drilling machine,new structure(Rack and Pinion,Ball screw transmission). In time and honestly after sale service(customers become friends,support each other forever)

Dezhou Guanlu,what we are selling is not only machines,but also our characters.