High Precision Engine Part 1.Material:Brass copper 2.Tolerance:0.01mm 3.Certification: ... : wire cutting machine CNC turning machine deburr all sharp edges 2).Factory facilities: CNC horizntal boring and milling machine,,Surface Grinder,wire cutting,Milling Machine,CNC Lathe.3 ... 1000, ESD225, ESD420 , ESD520HRCeramicZrO2, ESD CeramicCarbideCD 650 High Precision Engine Part