tightening ring 中文意思是什麼
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After tightening, the screw is secured and presses the disc firmly against the four - parted thrust ring thus protecting against slipping
在上緊后，螺絲可靠地把閥板壓在由四部件組成的止推環上，防止滑。 -
These valves incorporate an o - ring union seal that requires minimum tightening of union nut. do not overtighten
這些配置o形環接頭密封的閥門要求對接頭螺母進行最低程度的緊固。不要過緊。
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