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、普通单层玻璃，这是门窗行业中常见的一种玻璃，期具有厚度均匀，表面光滑的特点，但是普通玻璃隔音效果差，而且抗冲击能力，所以应用在肯德基门上具有一定的危险性。

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，这种玻璃隔音效果较好。而且具有保温隔热的性能。

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

3、单层钢化玻璃，具有抗冲击力强，稳定性高的优点，这种玻璃是普通玻璃经过特殊工艺加工制作而成。如果撞碎会形成蜂窝状的纯角碎小颗。所以就算使用过程中不小心撞碎也不会对人造成严重的伤害，是较为的一种玻璃类型

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、中空钢化玻璃，这种玻璃将两块钢化玻璃采用胶接法连接在一起，其中间利用干燥的空气保持一定间隔，周边用密封条密封而成，其抗击力更强，稳定性更高。

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.