... plating, Nickel plating and chromate plating 3.ISO9001:2008 CNC Machining for ball valve1. Product Introduction Item DescriptionNameCNC machining part:Copper ... parts, fasteners, and other jeweler accessories.(3) Main equipments: CNC lathe, Auto-lathe, meter lathe, pressing and forging machine, ... : Xishanqian village, Huanxiu street, Jimo, Qingdao, Shandong province, China CNC machining for ball valve