A scavenger function is realized because of the steel brush braced structure, and it can clean the sandstone and sundries in the pipeline.
由于采用钢刷支撑结构，因而又具有扫线功能，可将管道内的砂石杂物推出。
A scavenger function is realized because of the steel brush braced structure, and it can clean the sandstone and sundries in the pipeline.
由于采用钢刷支撑结构，因而又具有扫线功能，可将管道内的砂石杂物推出。
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