Silicon Nitride
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SHANGHAI YOU ZI WAN IMPORT AND EXPORT CO. LTD.
Suite 1507 3th Building Lane 573 Dongfang Rd., Shanghai zipcode: 200120
Established in 2003, we manufacture boron carbide, silicon carbide, boron nitride, silicon nitride and tungsten carbide products (blast nozzles, dies, seals, pieces, tiles ect.) and export mechanical ...