Polyurethane sandwich panel is a high-end product in metal building materials nowadays. The reason why it is high-end is that polyurethane sandwich panel integrates load-bearing, heat preservation, fire prevention and waterproofing. It is non-toxic, tasteless and does not need secondary decoration. It can be said that the polyurethane sandwich panel is the "all-round player" in the composite plate. Polyurethane sandwich panel can have so many functions, in fact, most of the credit is due to its core material, and the quality of polyurethane sandwich panel core depends on the quality of raw materials. Next, I will introduce to you the brand of polyurethane sandwich panel core material.