* Performance Characteristic: 1. Thick copper materials, the high brightness epoxy resin coating, anti-corrosive, is heat-resisting, guards against the ultraviolet ray radiation. 2. The valve adopts the helix seals that resisting high pressure, the easy of operation, and the seal is reliable. 3. Switches knobs use the high density PP material quality, conforms to human engineering the design, feel is comfortable.