Windows & Doors customized The aluminum alloy doors on the market can be divided into push-pull aluminum alloy doors, open aluminum alloy doors, and folding aluminum alloy doors. Their characteristics are different. The following introduction: 1. Sliding door: It refers to a door that is opened and closed by sliding left and right in the width direction. The perfect organic combination of a performance system for system doors and windows requires consideration of a series of important functions such as water tightness, air tightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, anti-theft, sun shading, weather resistance, and operating feel. Taking into account the comprehensive results of the performance of equipment, profiles, accessories, glass, viscose, and seals, none of them are indispensable, and finally high-performance system doors and windows are formed. Common sliding doors have two forms: exposed sliding doors and railings outside the wall, concealed sliding doors refer to sliding doors with the door and the railing in the middle of the wall. The sliding door has the characteristic of occupying a small space when opening and closing, which can make full use of indoor space. 2. Open the door: It refers to a door that opens horizontally with a stile as its axis. Swing doors are the most commonly used type of door. According to the different opening directions, it can be divided into two types: inward opening and outward opening. It is mainly determined by its function and the need to occupy as little interior design space as possible after opening. Generally, the inner door of the building usually opens inward, while the outer door and emergency door of the building often open outside. 3. Folding door: Folding doors refer to doors that can be folded during the opening process, and can be divided into two basic types: flat folding doors and sliding folding doors. black sliding glass doors patio aluminium folding door singapore white sliding door wardrobe 150cm ultra slim internal bifold doors