要检查各管道、阀门、连接胶管等处有无渗漏现象，如有则应及时修复。
To check the pipes, valves, connections, such as whether there is leakage of hose, if any, should be promptly repaired.
用途：主要用于油封、轴套以及胶管、阀门、减震制品、印刷胶板、输送带、防水圈等橡胶配件。
Usage: mainly used as rubber accessories like oil seals, bearing suits as well as rubber ducts, valves, shock absorbing wares, printing rubber plates, conveyance belt and waterproof rings, and so on.
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