4 major causes of cracking of PC lampshade, T8 lamp housing solution
The reasons for the cracking of the PC lamp cover can be roughly divided into two types. One is that the material is out of order, the other is artificial, and the material is out of order. Then the solution is also very simple to change the material. What is the artificial situation? What? In general, this is caused by improper installation and operation, and is subject to relatively large pressu