... copper 2.Technics-Hot punchining,CNC machining 3.ISO9001:2008 Metal machining 1. Product Introduction Item DescriptionNameCNC machining part: Copper ... projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug gauge and other regular gauges.(5)Certificate ... Xishanqian, Huanxiu Sub-district, Jimo city,Qingdao,Shandong province,China Metal machining