How to leak the foil seal?
Plain aluminum foil and aluminum foil trays can be purchased at supermarkets, department stores and home foil mills at hardware stores and industrial materials..
Is the use of aluminum foil rolling press by aluminum block out, and then cut into required length, width, and then roll up, packaging and selling.
Also as a foil, aluminum foil, in Hongkong, also known as tin foil, is machined by aluminum foil mill into a sheet thickness below 0.2mm, mainly used for kitchen cooking, containing food or used to make some simple cleaning materials.