... 50mm thick polystyrene(pu) insulation inside,colour:white Lighting system Ceiling lights:10units*4pcs=32pcs*36w,with electronic ballasts ... outside,beltdrive,air capacity,air capacity:22500m³/h Heating system RIELLO Rl28 diesel burner,stainless steel heat exchanger ... filter Roof Plates Galvanized steel Control system Power supply switch,emergency stop, fire safety valve,PlC combined with HMI coutrol, ...