Shaanxi Seyon Industries Co., Ltd. is a leading supplier and trader of mechanical seals for the application of pumps, Carbon Graphite Products,Silicon Carbide Ring and Tungsten Carbide Ring in China. we are able to supply Sundyne Pump Seals,many kinds of equivalent mechanical seals of John Crane and Bergmann,ect.. We also supply Carbon raw materials such as resin impregnated carbon graphite, metal impregnated carbon graphite, pure graphite, carbon graphite, resin graphite and embedded graphite etc. And we also machine carbon graphite into carbon sealing rings, carbon bushing and bearings, carbon vanes, carbon segmental rings, and so many carbon finished products.