发布时间:2025-01-30 22:53:38
把气泵的活塞、活塞环、钢套换掉就行了,注意活塞环安装的方向,开口不要重叠。不会换最好到维修店换,很便宜的。 漏气,换一个。
我们银行新装修需要排队叫号机点钞机装订机捆钞机窗口对讲机电子显示屏led大屏幕
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