Hebei Ji ao machinery manufacture Co., Ltd. The main products: bag dust collector, electrostatic filter,whirlwind dust catcher,wet-type dust collector,bucket lifter ,screw conveyor, Humidifying mixer, scrapper tripper,gate valve,Disc feeder,double hammer lap cindervalve. The company is founded in the 1990 s, to make environmental protection equipment and mining machinery as the main body, including product development, manufacture, installation, commissioning in one of special products ...