Is packing with a shelf life?
Metal belt pack also called steel, steel is processed into a certain process, there is a common blue metal packing tape and galvanized iron straps, iron belt can guarantee period is about three months, the galvanized iron sheet packaged with storage time can be longer, usually about half a year.
PP packaging belt and PET packaging belt collectively referred to as plastic packaging belt, as plastic resistance to oxidation, generally can store about a year and a half.
And iron belt, according to the different materials, packaging belt storage time is not the same.
