... seal ring wear；密封环磨损 seal screw plug；密封螺塞 seal seat；密封座 ...
基于8个网页-相关网页
seal screw plug
密封螺塞
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Just a few spare parts shall be replaced by the user. In addition, the machine shall also seal aluminum security plug, three screw cap and crown cap.
用户只需更换极少零部件，还可实现对铝质防盗盖、三旋盖、皇冠盖的封口。
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