The film has risen a lot recently, and it has become very important to preserve the film. Use a thick airtight bag to seal it, then put it in the refrigerator, let alone i50mm not remind you when it gets damp, and put some paper in it to prevent moisture. Get it from the freezing to the refrigeration, and then take it outdoors overnight. Even if you don’t put the refrigerator, put some paper in it. After all, summer is here and it is raining or humid.contact: firstname.lastname@example.org © 2020 Zhao Zhenguo. All Rights Reserved.