If you want to invest in PVC exterior wall hanging board machinery and equipment, you have to take a good look at this information
1. Raw materials: The difference between the exterior wall hanging board and the interior wall decoration board is that it needs functions such as radiation resistance, high temperature resistance, ultraviolet ray resistance, and aging, which has higher requirements for materials. PVC exterior wall hanging board can be understood in this way. It is divided into two layers. The top is the co-extrud