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Qishine Pipe Fastener Manufacturers, founded in 1998, in the production of pipe fittings, specializing in the production of high-strength graphite composite gaskets and non-asbestos gaskets, PTFE gaskets, bolts, nuts, tees, elbows, bends, reducers, flanges, valves, steel pipes, etc. Managed with a highly skillful team, having the 20-year-accumulated experience in pipe fittings manufacturing and high standard