High Precision Engine Part 1.Material:Brass copper 2.Tolerance:0. ... ;milling parts ;turning parts ;grinding parts ;cutting parts ; precision metal parts ;……Specifications of machining parts:(1) Material :Stainless ... PC, Black Conductive Plastic, Telfon, NylonEngineering PlasticSemitron 410C ,S1000, PEEK 1000, ESD225, ESD420 , ESD520HRCeramicZrO2, ESD CeramicCarbideCD 650 High Precision Engine Part