... Waste processor 2.Air switch,220/110V,1/2HP 3.Employ high quality PP board to weld. Acid-base ... High air flow,medium and low voltage2.Countercurrent washing,acid-base neutralizationFeatures:Low air resistance,Low noise,stable ... chemical industry,semiconductor optoelectronics,electroplating and metal surface industry,acid washing process,dyes,pharmaceuticals,deodorant,combustion exhaust gas ...