1), holes are not allowed
2), turning net: vertical or horizontal >=50cm turning net is a shelter, 500 meters/piece
3), oil pollution is not allowed
4) Stiff block: area >=4cm2 is a shelter, <=4 pieces/roll
5), width +2mm
6), roll length +0.5m
7), gram is important and accurate, products below 30g/m cannot exceed +5g
8), the left and right weight deviation cannot exceed 0.3kg
9), splicing times 100m/time
10), trim the edges neatly
11) No delamination or fluffing is allowed
12) The vertical and horizontal strength cannot be lower than the industry standard
13), the cloth surface must be even
14), no obvious wrinkles
15), the packaging is intact
16). The paper tube must be aligned.
