... .002mm 6.Angle clearance:R0.03mm Item Steel machined welding box Material Steel ,Stainless steel, Iron ,Aluminum, ... lathe, CNC lathes machine , CNC milling machine , Milling machine , Grinding machine , Tapping machine , Thread rolling machine , Drilling machine, Stamping machine and etc.Quantity control ... going state, thereby reaching rejection and maintaining high quality as per our quality plans.R&D ...