... aluminum alloy.2) Opening direction: Inward, Outward3) Door panel:glass or steel,single layer or double layer .4) Package: ... in balcony,villa,office room and commercial building.6) Different glass options are available, such as tempered, low-e, ... ventilated even in rainy weather. Adopt Single/double glass, low-E glass, tempered glass, tinted glass & sealed by Silicone.If our standard product designs ...