According to each industrial process and the dust of characteristics, combines years of environmental governance experience technology, effective improve pulse bags type Duster of dust efficiency and the run reliability, filter bags of using life extended, reduced management maintenance of strength and requirements for purposes, Hua Zhu mechanical manufacturing limited development developed has MD type series pulse bags type received hubbub (plus gas block MD bags received dust device), is widely application Yu building materials, and chemical, and coal, and tobacco and the food, industry dust governance of ideal equipment.