January 01, 1970
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MK1128 is braided with domestic PTFE graphite yarn according to the manufacturing process of GFO packing.
MK4220 is blended and braided with 1126Y and 3000Y by special process...
Made of polypropylene fiber by reinforcing, braiding and impregnating with PTFE. Phenolic fiber in corners give the packing much better wear resistance.
