gas valve 1. material: brass 2. ISO9001 and ISO14001 3we can .produce ... in the inlet and outlet water fittings, scale adjustment watersaving valve and other connector of the heater.4. market: Germany, ... Japan, Poland, Italy, Hongkong,China and so on5. production capacity: 2000,000 pieces each year6 ... with drawings or samples and drawings are warmly welcome. gas valve