January 01, 1970
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PTFE gaskets are made of PTFE rods, tubes, and plates by mechanical turning or cutting, or made by compression molding and high temperature vulcanization.
Large winder for SWG can make spiral wound gaskets with or without inner & outer ring, needn’t complex molds. Work pressure is changed with dia. Size controlled by air pump. Horizontal style is suitable roomy workshop. Need additional welder.
Made of ramie fiber by braiding, impregnating with graphite, and shaping with silicon oil...
