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Ningbo Demy (D&M) Bearings Co., Ltd. is one of leading ball & roller bearing manufacturers & belt, chain, auto-parts exporters in China. It is specialized in research and development for various kinds of high precision, non-noise, long-life bearings, high quality chains, belts, auto-parts and other machinery&transmission products. We can produce more than 12000 specifications of general and special bearings with 9 types and 5 precision classes according to international standard, national standard and customer requirements, whose ID rang... [Details] |