... plating and chromate plating 3.ISO9001:2008 Brass Ball Valve 1. Product IntroductionItem DescriptionName1/2'' Brass Ball ValveMaterialBrass, CopperSurface TreatmentZinc plating or ... ., Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto-lathe turning precision part ...