20 professional knowledge of aluminum doors and windows, how many can you answer correctly?
1. What are ordinary aluminum alloy profiles? There is no air layer between the inside and the outside, and the surface is sprayed with anti-corrosion treatment. 2. What is a broken bridge aluminum alloy profile? What are its advantages? The principle of the broken bridge type aluminum alloy window is to use heat insulation strips to separate and tightly connect the two layers of indoor and outdoor aluminum alloys into a whole to form a new heat-insulating aluminum profile. The inner and [...]