1. Door and window system: refers to all materials (including profiles, glass, hardware, sealant, adhesive tape, auxiliary accessories, support screen) that make up a complete door and window subsystem. It is a standardized product that has been integrated with strict brand technical standards and practiced for many times, and is processed and installed by using special processing equipment and installation tools according to standard technology.
2. System doors and windows: it is a perfect organic combination of performance systems. It needs to consider a series of important functions such as water tightness, air tightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, theft prevention, sun shading, weather resistance, operating hand feeling, and the comprehensive results of equipment, profiles, accessories, glass, adhesives and seals, all of which are indispensable, thus forming a high-performance system door and window.