There are open, closed, mixed and micropores. That is, the PU component is used to form a foam plastic product with a solid skin at a time by a special process. Plastic foam: It is a chemical material, the full name of polystyrene foam (Expanded Polystyrene) , Referred to as EPS). It can be used in shock-proof packaging of electrical appliances, instruments, handicrafts and other vulnerable valuables, as well as fast food packaging. Generally, polyurethane is semi-rigid The foam is made of pvc or abs and other plastics as the surface material, and PU semi-rigid foam is filled into it to form a sandwich material that looks like a 'sandwich', which is used as a decorative material in industries such as automobiles and furniture. , About a few tenths of [...]