Ningbo Demy (D&M) Bearings Co., Ltd. is a leading manufacturer of ball & roller bearings and exporter of belts, chains and auto parts in China. We specialize in research and development of various kinds of high precision, non-noise, long-life bearings, high quality chains, belts, auto parts and other machinery & transmission products.We have supplied our products for more than 60 industries, including railway, automobile, metallurgy, heavy industry, petrol-chemical, military and other industries. Our products have found a steady market in North & South America, Southeast Asia, Europe and other countries and areas. Our company is developing toward series of products with high grade, high precision and advanced technologies to create a global OEM and after-sales service system according to ISO9001:2000 quality certificate. We will adhere to a long-term principle: "Quality first, Credit first & Service first" to welcome customers from home and abroad.