shell using high quality raw materials zinc alloy, the pressure casting and become, have density high resistance to oxidation and the characteristics of the rusty spot, valve core has excellent sealing and wear resistance, quick start-up and shut-down slowly open two, for the customer to choose, white zinc color, chromium plated and fine grinding and polishing, of the surface gloss of the uniform, use for a long time will not fade, new product design, quality excellent, the product of convenient installation, durable and perfect service, assured the choose and buy