Polyethylene foamed sheet (film), also named as pearl cotton, is a kind of new-type packing materials with the features of damp proofing, shockproof, sound insulation, heat preservation and good plasticity.

• 聚乙烯发泡片（膜），又称珍珠棉，是一种新型的包装材料，具有防潮、防震、隔音、保温、可塑性能佳等诸多优点，是传统包装材料的理想替代品。