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Go to Yongkang, Zhejiang to investigate, all big and small are doing this.
It doesn't matter much, that thing is used less, and the expansion is too great.
Removal method:
1) After the styrofoam gets on the door, don't touch it, wait until it dries, just shovel it off with a shovel, and then wipe off the mark with gasoline thinner, be careful not to shovel off the door skin. >>>More
This styrofoam depends on the quality you need, and to put it bluntly, it is a matter of how much water you want.
After the foam glue is dry, just cut off the excess with a wallpaper knife! It's very convenient.
Yongkang Door Expo when I saw this factory, I didn't care much about it, there was a door fair in Shanghai on September 28, and I will help you pay attention to it at that time.