08-14-2014, 09:47 AM
Corrugated Insulation
From paper formed into shapes that produced enclosed air pockets into small regular semi – circular corrugations and covering both sides with sheet of flat paper to give strength and produce the air pockets.
From paper formed into shapes that produced enclosed air pockets into small regular semi – circular corrugations and covering both sides with sheet of flat paper to give strength and produce the air pockets.