... / D module, D / A module, inverter, electromagneti China Gypsum Board Machinery Description:Computer electronic feeding system:Automatic feeding system include ... section,it adopts heat exchanger dryer:The drier has 4-12 layer rollers, and three zones with vertical airflow. In ... zone, it can improve the quality of the gypsum board Automatic edge cutter,grinding and recycling,sealing,stacking system ...