The utility model discloses a filter which relates to a filter unit.
本实用新型为一种过滤机, 涉及一种过滤装置。
The utility model relates to a scraper unit of base edge combined rotation without special driving power.
本实用新型是无专门动力底边组合旋转的刮刀装置。
The utility model relates to a boiler with a smoke circulating unit， particularly the improvement of the structure of a boiler accessory.
具有烟气循环装置的锅炉是涉及锅炉附件结构的改进。
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