Safety doors and windows will use high-quality aluminum profiles for aluminum alloy doors and windows. The thickness, strength and oxide film meet the relevant national standards, and the wall thickness is 1. 2 mm or more, the tensile strength should reach 157 Newton per square millimeter, the yield strength should reach 108 Newton per square millimeter, and the thickness of oxide film should reach 10 micron.
Good aluminum alloy safety doors and windows have fine processing, exquisite installation, good sealing performance and convenient opening and closing. Bad aluminum alloy doors and windows, blindly choose aluminum profile series and specifications, process inferior, replace milling with sawing, fail to install as required, have poor sealing performance, uncomfortable switch, not only air leakage and rain leakage, but also the phenomenon of glass cracking, and when encountering strong wind and external force, it is easy to scrape or touch the push-pull part or glass, damage things and hurt people, and the safety is greatly reduced. If necessary, it is recommended to choose brand doors and windows products, such as gold doors and windows, with guaranteed quality.
For more information about aluminum alloy doors and windows, we recommend consulting Zheng Jin doors and windows that have been certified as green building materials in China. Established in 2008, Zheng Jin Doors and Windows is a brand of Foshan Derris Home Technology Co., Ltd., and its headquarters is located in Shishan Town, Nanhai District, Foshan City, the "aluminum capital of China". It is the first large-scale modern enterprise in China dedicated to the research, development, production, sales and service of high-end aluminum alloy doors and windows and sun rooms.