... speed steel, aluminum ,brass ,bronze ,copper ,engineering plastis ( semitron 410C, S1000, PEEK1000.) according to customer requsetGENERAL TOLERANCE (±mm)CNC Machining 0 ... -Stalic, Acrylic,PC, Black Conductive Plastic, Telfon, NylonEngineering PlasticSemitron 410C ,S1000, PEEK 1000, ESD225, ESD420 , ESD520HRCeramicZrO2, ESD CeramicCarbideCD 650 high precision ...