... is widely used in ceiling,side wall, sidewall, door, air conditioner application, in broadcast room, hospital, theater,guest room etc.With ... of users, the diffuser can be equipped with a volume damper at the back.Made of quality aluminum alloy profile and ... the products as clients' request.Specification and Performances Table for Air Conditioner Grille:Neckpart Windspeed(m/s) 2 3 4 5 6 ...