(57) Abstract Objective Don''t you think? the adhesion where it is not necessary to provide the spacer in the adhesion section the zuThe seeing taking is offered. Constitution It waits on both sides of median board section 2, through section 5a and 5bLeft and right side board section run facilities to do 4 and 3 as one unit, in the inside of the median board section viscousArrival section 15 is formed, the side board section left and right is bent to the upper part, it is denseAforementioned of the cardboard make mount 1 which can be formed in triangular tubed withAs for side board section of one side of left and right side board section width of left and right direction of median board sectionThe same length or to make brief somewhat, at the same time as for the other side board section the playing edgeParalleling, to possess fold 7, somewhat long rectangle than width of the median board sectionForming, it buckled outside.
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