PO hot melt adhesive film is a major category in the classification of hot melt adhesive film products. PO is the abbreviation of Polyolefins, and Polyolefins translates to polyolefins. So PO hot melt adhesive film is also called polyolefin hot melt adhesive film. ​ So what is polyolefin? Polyolefin is a general term for a class of high molecular polymers, usually refers to ethylene, propylene,...