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 is one of leading ball roller bearing manufacturers belt,chain,auto-parts exporters in ...


Perfect measuring and testing measures instruments

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