we specializes researching and manufacturing the super precise bearings for machine tools and motors. In recent years, we increased technical devotion and strengthened equipments alteration, in the meantime, we have put in large bankroll to buy the first class machine and inspecting instruments from domestic and international corporations. we adopted ISO specifications and the latest national standards, the product's quality greatly improved. Now, the precision of spindle bearings for machine tools has attained P5 and P4 class with low-noise, high precision, excellent-character, long-life Characteristics. The products are widely applied in precise machine, medium-large-size motor, Precise rolling mill etc. Replacing or complementing the lack inland, saving the customer's purchasing cost, shorting the cycle of stock