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 graphite, and shaping with silicon oil...
Stop automatic while yarn broken; Impregnated lubrication and heated during braiding; The pull can be adjusted 1~4kg; Braided tightly; Show output; Lower noise;
