Cross section color
The cross-sectional color of the contour is the identification method. The color of primary aluminum is bright, and the color of secondary aluminum is dark gray.
wall thickness
The wall thickness stipulated by the state is 1.4cm. It is known that all profiles that reach 1.4cm are still qualified, and those below1.4cm are inferior products, so be sure to observe them carefully when buying.
protective film
When you buy the broken bridge aluminum profile, there will be a protective film on your body, which has some information such as brand name, production specifications, anti-counterfeiting logo and so on. , can provide you with reference. If you are still not at ease, you can call the manufacturer directly to consult the situation.
raw material
The surface of aluminum material is smooth and shiny, without aluminium scrap and burr. Its strength, thickness and oxide film must meet the national standards.
Technology and performance
A good broken bridge aluminum profile product has the advantages of fine processing, smooth tangent, accurate angle, no obvious gap in the splicing process, good sealing and smooth switching.
conservation of energy
The window frame with heat insulation strip can reduce the heat lost through the window frame1/3; In summer, adding heat insulation strips to window frames can reduce energy loss. Can make your home warm in winter and cool in summer, and make your home both environmentally friendly and energy-saving.
reliable
Broken bridge aluminum doors and windows have a highly mature weatherproof system, with wind resistance P3≧5.0 and air tightness P3≧9.0. A fully enclosed system is formed indoors and outdoors, and the precise corner assembly glue injection process system greatly improves the sealing performance of the whole window.