1. PE material is very soft, very transparent, but thicker PE plastic bags, will feel a little milky white, foggy, but does not affect the product in the perspective bag. The sound is very soft and the hand feel is very soft. It is used to protect the inner packaging of the product and will not scratch the product.
2. PO material pinch sound is relatively loud, it sounds crunchy, feel very hard, but the same thickness will feel thicker.