... plating, Nickel plating and chromate plating 3.ISO9001:2008 3/4'' Brass Gate Valve1. Product Introduction Item DescriptionName Brass Gate ... lathe, pressing and forging machine, polishing equipment, etc.(4) Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, ... village, Huanxiu street, Jimo, Qingdao, Shandong province, China 3/4'' Brass Gate Valve