*The sealed drain system and dry fixed construction obtain the excellent anti-air and anti-water ability;
*With variety of opening ways and optional aeration and the degree of the opening;
*The glass can be taken down easily at room , which make the maintenance and glass-change convenient ,in addition to the colorful decoration effect;
* open the leaf Safely and conveniently, and the it can be cleaned easily;
*carrying the ?°equal room ?± theory obtain the excellent heat-preservation?￠sound insulation and less-transfiguration ability; the superiority is fit for the large grille
*using the 24mm insulating ingot can get better ability than the other series 60 in heat-insulated and heat preservation;