09-29/2020
Canned containers made of tinplate usually need to be coated with a coating on the inner surface, the purpose of which is to prevent the chemical interaction between the contents of the can and the can wall and the contamination of the contents by trace amounts of harmful substances, and to protect the freshness of the contents As well as the original flavor, the starting food can be stored, transported and sold for a long time without affecting its edible value.