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- All the parts, except the dustproof seal, are made of stainless steel.
- Depending on the environment and operating conditions, the grease for the vacuum is enclosed or the surface treatment (the special PTFE coating or the Ag-ion-plating coating treatment) is processed.
- The products can be used in the environment of low dust generation, in both clean air and vacuum, by processing the special PTFE coating treatment.


