Wall panel made of 1.2mm thick SUS304 stainless steel,with spray nozzles,cleaning time is 2min.1 sets of 7.5kw centrifugal vertical pipe pumps for spraying.Water tank inside panel is made of SUS304 2.5mm thick stainless steel,outside is 0.8mm thick SUS304stainless steel,inner is 40mm thick rock wool for keep heat.Each stage have 1 set of 3kw air exhaust fan on top