Blister trays are also called plastic inner trays. Plastic hard sheets are made into plastic with specific grooves by a blister process, and the product is placed in the groove to protect and beautify the product.
There are generally two relationships between blister trays and products:
The first is that the product does not need to be returned to the original blister tray after being taken out of the blister tray;
The second is that the product needs to be returned to the original blister tray after being taken out of the blister tray.