How about integrated wall decoration materials? Does it expand and contract?
Thermal expansion and contraction must be the effect of temperature on the overall wall. Temperature directly affects shrinkage, especially for rigid PVC with shrinkage. The shrinkage of the molded PVC is about 0.1-0.5%, and the thermal expansion and contraction temperature is 70°C. In other words, the above three thousandths are based on this. However, we may ignore that the integrated wall is