Leading ball roller bearing manufacturers

DEMY(DM)BEARING CO.,LTD is located in Hemudu Culture Ruins of Ningbo China which has 7000-year-old history. The company one leading ball roller bearing manufacturers belt,chain,auto-parts exporters China. It …


Perfect measuring and testing measures instruments

The company has 20 sets of automatic gringding production lines, assembly lines with the annual capacity 25 millions sets.Perfect measuring and testing measures instruments been adopted by to ensure excellent …