| 摘要 |
<p>Disclosed is a marine seated sleeve, comprising a sleeve body, wherein the sleeve body is made of a copper-nickel alloy, the length of the sleeve body is 72.9 mm, the inner diameter of the sleeve is 52.3 mm, and the outside of the sleeve body is provided with a protective layer. The marine seated sleeve has a reasonable structure, good usage effects, and strong adaptability.</p> |
