国产免费一区二区三区在线观看,国产大学生毛片一级高清,一本久久精品一区二区

YGX series rigid impeller feeder

Rigid inpeller feeder , also called star type discharge valve,used for drying powder or small particles material in the silo or hopper, uniformly continuously feed to the next device,is a kind of quantitative, lock the wind feeding equipment.