... the panel automatically. 4).The main body is welded with type "H" section steel as its material, strong strength. 5 ... buckle plate ,EPS fluting plate,980 lap type,980 button type and 980 bite type.Rockwall sandwich panel machine .This sandwich panel ... 4.5m/min,continuous stepless adjusted,variable frequency speed regulation,digital display.2.Adopt high precision,low speed measurement pump to deliever ...