As an example, if the inner liner used at present is of 170 gm paper, a folded over margin of some 2 mm at the opposite ends of {TAIL ~ a 147 gm liner sheet} of {HEAD ~ the same quality} will give the edges the same or better stability, although less material is used 
As an example , if the inner liner used at present is of 170 gm paper , a folded over margin of some 2 mm at the opposite ends of { TAIL ~ a 147 gm liner sheet } of { HEAD ~ the same quality } will give the edges the same or better stability , although less material is used
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