dust seal

防尘密封条，尘封

1. 防尘封：dust screen 隔尘网 | dust seal 防尘封 | dusty material 易生尘埃物料

2. 尘封：Dump valve释放阀 | Dust seal尘封 | Dust shield防尘罩

3. 档尘圈：Anchor hole 锚栓孔 | Dust seal 档尘圈 | Valve cover 气门盖,阀盖

4. 防尘密封：dust rain 尘雨 | dust seal 防尘密封 | dust separator 除尘器