... Sand Drying EquipmentsPatent:ZL 200420050881.XH-TEC Dry Mix Mortar High Tower Type Production Line can produce the below product: ... Mortar,Waterproof Mortar,Floor Hardener,etc.The Dry Mix Mortar High Tower Type Production Line includes Silos on top of ... , Screw Conveyor,Sand Pretreatment system with Sand ryer,Screening Machine,Belt Conveyor,Scoop Skip,etc Semi-automatic Putty Powder Production Line