avhd性感人妻免费在线_九九精品韩国一区二区_日韩精品成人一区二区三区免费看_精品激情视频一区二区三区中文_欧洲色成人一区二区三区在线观看_国产高潮jk黑丝喷水痉挛

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.