Shanghai You Zi Wan Impex Co. Ltd.  

Shanghai You Zi Wan Import and Export Co. Ltd. is a professional industrial products manufacturer and service supplier with independent export and import right.
We manufacture boron, silicon and tungsten carbide products (blast nozzles, dies, seals, pieces, tiles ect.);export mechanical seals (alumina, carbon, ssic, sic, tc and assembled ones according to burgmann and john crane standards), on-duty metal parts and graphite products and make all patterns, materials and sizes of woven and knited wears with our own purchsed materials or customer's supplied models and materials (cashmere, silk-cashmere, wool, spun silk, woolacrylic, cotton, ramie-cotton and noil silk yarns).