The chemical content of high wear resistant alloy layer is 4~5%, the chromium content is up to 25~30%, the volume fraction of Cr 7 C 3 carbide in metallographic tissue is more than 50%, the
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Qingdao HGV Precision Bearing Co.,Ltd: Chinese bearing manufacturer,produce many kinds of bearings,good quality low price, have world wide business.
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TONGTAO is one of the most professional auto tensioner bearing manufacturers and suppliers in China, featured by quality products and good service. We warmly welcome you to wholesale custom made auto
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KODA must be your most reliable manufacturers and suppliers of men watches, women watch, wooden watches, pocket watch in China. Excellent design and exquisite crafts are main advantages of our watches. Welcome to place orders with our factory.