Low friction chevrons for valve stem pac
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Article
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1995
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Elsevier Science
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English
โ 183 KB
## Dynamic sealing 184 expanded PTFE sheets can be cut to size by using a scissors or knife. For sealing requiring more complex shapes, 185 Expanded PTFE joint sealant is a long, endless sealing material on a spool that can be laid out and cut to size. Self-adhesive strip holds it in place for ass