... copper 2.Technics-Hot punchining,CNC machining 3.ISO9001:2008 Metal machining 1. Product Introduction Item DescriptionNameCNC machining part: Copper ... everything2. Company Introduction (1) Company Name: Qingdao Zehan Machinery Manufacturing CO., Ltd.(2) Main products: CNC machining precision parts: valve accessory, ... , Huanxiu Sub-district, Jimo city,Qingdao,Shandong province,China Metal machining