هل نوافذ الألمنيوم أفضل من UPVC؟
27 Mar, 2021Anti-wind pressure strength and water tightness: Due to the low material strength and steel, plastic steel windows and door are strengthened by lining, but their wind pressure resistance and water tightness are about two grades lower than those of aluminum alloy windows and door. The standard sample window submitted by the enterprise for inspection is like this, and so is the sampling at the construction site. The average value of "three properties" of aluminum alloy windows and door and ......