KFC door is loved by many users for its strong, durable, bright and generous characteristics. The reason why it is strong and durable is closely related to the performance of its raw materials. KFC door frame is made of various stainless steel materials or aluminum alloy materials with good performance. KFC doors made of these materials have many advantages, such as durability, fire and moisture resistance, not easy to rust, corrosion resistance, etc. Another point is also an important reason why people like KFC doors. KFC doors generally use large-area glass, which can fully show the indoor situation in front of everyone and make the indoor light bright.

1、普通單層玻璃，這是門窗行業中常見的一種玻璃，期具有厚度均勻，表面光滑的特點，但是普通玻璃隔音效果差，而且抗沖擊能力，所以應用在肯德基門上具有一定的危險性。

1. Ordinary single-layer glass, which is a common glass in the door and window industry, has the characteristics of uniform thickness and smooth surface. However, ordinary glass has poor sound insulation effect and impact resistance, so it is dangerous to be applied to KFC doors.

2、中空普通玻璃，這種玻璃隔音效果較好。而且具有保溫隔熱的性能。

2. Hollow ordinary glass, which has good sound insulation effect. And it has the performance of thermal insulation.

3、單層鋼化玻璃，具有抗沖擊力強，穩定性高的優點，這種玻璃是普通玻璃經過特殊工藝加工制作而成。如果撞碎會形成蜂窩狀的純角碎小顆。所以就算使用過程中不小心撞碎也不會對人造成嚴重的傷害，是較為的一種玻璃類型

3. Single layer tempered glass has the advantages of strong impact resistance and high stability. This kind of glass is made of ordinary glass through special process. If smashed, it will form honeycomb pure angular small particles. Therefore, even if it is accidentally broken during use, it will not cause serious harm to people. It is a safer type of glass

4、中空鋼化玻璃，這種玻璃將兩塊鋼化玻璃采用膠接法連接在一起，其中間利用干燥的空氣保持一定間隔，周邊用密封條密封而成，其抗擊力更強，穩定性更高。

4. Hollow tempered glass, which connects two pieces of tempered glass by bonding method, in which dry air is used to maintain a certain interval, and the periphery is sealed with sealing strips. It has stronger resistance and higher stability.