... : 1.2-3layer of steel structure with staircase; 2.auto type weighing system 3.1year warranty. Detailed production specification: Dry mortar production ... with Staircase, Screw Conveyor, Additives Storage, Weighing System, Mixing System, Packing System, Pneumatic System, Control System, Dust Collector System. Application of Stepped Dry Mortar Mixing PlantOur ...