| 摘要 |
A shaft of water ski boom has a grip portion comprised of a tapered subsection around which is a somewhat compressible polyvinyl chloride sleeve having a thickness tapering in the opposing direction to the shaft, to provide a constant diameter grip. Another shaft subsection has a harder vinyl sleeve where the shaft contacts the boat gunnel. A resilient polyester coating covers the rest of the shaft. The polymer layers are applied by liquid and powder processes using combined curing cycles.
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