There are many kinds of luggage, such as trolley bags, handbags, handbags, backpacks, mountaineering bags, school bags, cosmetic bags, tool bags, music equipment bags, sports bags, and so on. Recently, bags made of PVC fabrics are popular with consumers because of their waterproof, mildew-proof and easy-to-clean characteristics. PVC fabric is a type of fabric, which can be canvas, Oxford...