Aluminized paper can be divided into direct evaporation method and transfer method according to its production process: direct method is the method of directly placing the paper in a vacuum aluminizing machine for aluminizing.

Recently, the whole country has entered "dog days". For this year, the "dog days" will last up to 40 days and will last until late August. Once it falls, the weather will become very hot, and many places in the country will enter the continuous high temperature mode. With the attack of high temperat