The foam edge protection and angle protection produced by foam edge protection and angle protection manufacturers are mainly used in shock proof packaging of electrical appliances, instruments, handicrafts and other vulnerable valuables. Plastic foam is a chemical material, its full name is polystyrene foam plastic, which has the characteristics of light weight, firmness, shock absorption, low moisture absorption, easy molding, good water resistance, thermal insulation, low price, and is widely used in packaging, heat preservation, waterproof, heat insulation In areas such as shock absorption.