January 01, 1970
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Outer ring grooving machine design for making groove of outer ring of spiral wound gasket, controlled by air pump. No longer expensive lathes need; one worker can see after more then 10 machines in same time.
Made of ramie fiber by braiding, impregnating with PTFE and shaping. The product has high wear resistance and is an ideal ...
Each PTFE graphite yarn is covered with aramid fiber in its center
