1.High quality,favorable price. 2.ABEC-3,5;Z2V2,Z3V3 3.ISO 9001:2000 quality 4.TIMKEN,SKF,NSK OEM service 5.12 year export e DALIAN BEARING TEST & RESEARCH COMPANY Is at hand,Service is limitless!As one of the largest bearing enterprise in China , we have 12 years export experienceand passed ISO 9001:2000 quality,products meet ABEC-3,5 standard,more information about BTR can be found on our ...