Gas Valves 1.Material: Brass C3604 or Aluminum 6061 2.Short Delivery ... days, mass production 10-20 days Product DetailsFeatures of Brass Valves;1)We can process all kinds of maching shafts for ... ,Chrome,Tin ,Ag);Painting ,Anodizing,Heat treatment ,Black oxid;4)Standard/specification:OEM service as per customers' requests.5)Rohs compliance ...