Ahu unit. Enviro tech manufacturing of single & double skin air handling unit and ceilng suspended units of higher cpacity 800 cfm to 60000 cfm-v-beltt drive & direct drive static presure 10 mm to 300 mm w. G. Depends on the application and requirement. We are manufacturing air handling unit & ceilng suspended units in single & double skin configurations casing the standard aluminum hollow profile, pannel thick 25mm insulation p. U. F outer colour coated sheet. Inner gi plain sheet, blower centrifugal type forward curved, wet and dry sections, cooling coil filter section easly slided for 50 mm thick pre air filter box type washable type & canvas. Application. Air conditioning, showroom, shopping mall, restaurant & bar, hotels, office, call centre, building, schools, studio, institute, hospital, pharma company, clean room, etc. Enviro tech industrial products company works under the leadership of mr. R. P. Sharma phone 9871034100,22483365,22083434 email. Envirotech1976@yahoo. Co.