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Shanghai You Zi Wan Import and Export Co. Ltd.
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About Us
We manufacture boron carbide, silicon carbide, boron nitride, silicon nitride and tungsten carbide products (blast nozzles, dies, seals, pieces, tiles ect.) and export mechanical seals (alumina, carbon, ssic, sic, tc and assembled ones according to burgmann and john crane standards), on-duty metal and compressor parts (metal and high-tech plastic-based gas valves and valve assemblies, piston bar; cooler; Filter; oil scraping rings ect.. ) and graphite products.
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