The use of the wrap film for packaging has a strong tightness and shrinkage, can compact and fixed the product into a unit, so that scattered small pieces into a whole, even in an unfavorable environment without any loose and separated products, and there is no sharp edge and viscosity, so as to avoid damage. Widely used in foreign trade export, furniture, electronic and electrical products, food and beverage, printing and papermaking, bottle making, glass, ceramics, crafts, semi-finished products turnover and exhibition goods/machinery transfer and other industries. The product has the characteristics of stable performance, simple operation and reliable use.