发布时间:2025-01-16 10:22:41
里面是弹簧和齿轮,有一常开触头,旋转定时后,触头接通电路,弹簧使齿轮回转,到起点后,触头被齿轮上的凸起部分顶开,断路
l型厨房想安玻璃推拉门两对门中间需要安柱子吗如果中间不安柱子是不是门无法固定安单层玻璃可以吗
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