I.PE cling film: non-toxic and chemically stable, suitable for cold storage, freezing, but not heating of vegetables, fruits and meat etc.

II.PVDC, PMP cling film: excellent oxygen barrier, odor barrier and moisture barrier performance and high heat resistance temperature, can also be used for microwave heating. It can withstand high temperatures of 140-180°C, but cannot be put into a high-temperature oven.

III.PVC cling film: can only be used to package low-temperature or normal-temperature foods with low fat content, such as vegetables, fruits and eggs etc.