Since the main use surface of the assembly parts is the inner hole of the jewel, and the jewel material has good wear resistance. Its dry friction coefficient with steel is 0.14. The friction resistance is small; the sensitivity is high during use; and the service life is long. Therefore, it is widely used in the movable parts of precision instruments and military instruments in China and abroad.
Specific specifications, dimensions and technical requirements can be processed according to client' s drawings or design by our company.
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