"Based on domestic market and expand overseas business" is our development strategy for Ball Bearing Units, Waterproof Ball Bearings, Silver Ball Bearings, Top Roller Chain,Power Transmission Chain. Many years of work experience, we have realized the importance of providing good quality products and the best before-sales and after-sales services. The product will supply to all over the world, such as Europe, America, Australia,Russia, Japan,Borussia Dortmund, Singapore.We offer the great variety of products in this field. Besides, customized orders are also available. What's more, you will enjoy our excellent services. In one word, your satisfaction is guaranteed. Welcome to visit our company! For more information, please come to our website.If any further inquiries, please feel free to contact us.