... .Material: brass 2.Finish: Zinc plating, Nickel plating and chromate plating 3.ISO9001:2008 CNC Machining for ball valve1. ... Company Name: Qingdao Zehan Machinery Manufacturing CO., Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings ... accessories.(3) Main equipments: CNC lathe, Auto-lathe, meter lathe, pressing and forging machine, polishing equipment, etc.(4) ...