If the Wallpaper was formed glueless bubble and this place had to be cut, use a medical bag filled with glue (casein, PVA, etc.), it will help to inject it directly into the slot. Now there will be only press firmly exfoliated the area, removing excess glue with a soft cloth, allow to dry. Pear is easy to use and in the restoration of furniture.
Recommend to read
SNOWMOBILE: IDEAS AND DESIGNS
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SPROCKET FOR CHAIN TRANSMISSION
the Designers often have to choose the right transmission ratio, and in this regard to look for suitable veins. The case is ungrateful, requiring large expenditures of time. It is much...