... is widely used in ceiling,side wall, sidewall, door, air conditioner application, in broadcast room, hospital, theater,guest room etc.With different forms of structures ... the products as clients' request.Specification and Performances Table for Air Conditioner Grille:Neckpart Windspeed(m/s) 2 3 4 5 6 ... the square diffuser, their performances data are equivalent as well Air Conditioner Grille