Harmonica and method of processing a cover film for use on a harmonica

摘要

Harmonica with a cover film, characterized in that the cover film at a certain temperature of a mixture of 4-8 mg of cyclohexanone, 2-4 mg of di-n-octyl phthalate, 1-4 mg of acetone, 3-5 g of polyethylene and 1-4 g silicon dioxide is formed.