Plastic bag is a general term, as long as it is made of artificial resin material, it is called plastic bag.
PE bags, nylon bags are plastic bags, the material is different. PE bags are divided into high density and low density. High density products are more tenacious, transparent, hard to handle, and relatively expensive. General supermarket to the plastic bags are high density PE bags. Low density PE bag is the most common kind of soft bag sold in the general market. It is inferior in quality, poor in transparency and cheap in price. Nylon bag is a kind of plastic bag made of various polyamides, which varies with different amide materials. But in general, the appearance is good, thick and silky. Generally used for high-grade clothing, jewelry and other goods, the price is relatively high.
