DEMY (D&M) BEARINGS CO.,LTD. is one of leading ball & roller bearing manufacturers & exporters in China. It is specialized in research and development for various kinds of high precision non-noise,long-life bearings. 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 ranges are from 5 mm to 6300 mm. Meanwhile,we produce precision ball screws, C. V. Joints Slewing bearings and etc. We have been supplying our products for more than 60 varies of industries, including railway, automobile,metallurgical,petro-chemical,military and other industries.products have been found a steady market in North & South America,South-east Asia,Europe & some other Countries & districts. The company is developing to ward series of products with high grade, high precision and advanced technologies to create a global OEM and after-sale service system,according to ISO9001:2000 Quality certificate. DEMY (D&M) Bearings will adhere a long term principle Quality first,Credit first & Service first to welcome customers both at home & abroad.