... specially for dustlessness polish design, may coordinate the use air o Decription:• This industrial used vacuum collection dust equipment ... specially for dustlessness polish design, may coordinate the use air operated, the electrically operated grinding machine, the hand to ... filter pocket . •Power loss: 1,200 W ± 10% • Negative pressure: 2,274 mm /H2 • Capacity: Stainless steel collection dust barrel ...