Colour	Blue
Thickness	1.95(3ply)
Rubber surface	Buffed
Gauge	≤0.02mm
Hardness	78 Shore A
Elongation ta 500N/50mm	0.7%
Tensile strength	4500N
Air cushion compression(200N/cm2)	0.20mm
Speed	12000-15000 sheets/hour

1.Check the flatness of its surface. The way to check is to print the full version, but the printing pressure should be lower than the normal pressure. In this way, the non-uniformity of its surface can be exposed. If the pressure is too large and the field is thick, it is difficult to see the difference. 2.If the unevenness of the surface is unacceptable (the specific indicators can be judged by experience), check the surface uniformity of the blanket and liner and whether there are foreign matters on the surface of the drum. After removing the foreign matter, if the non-uniformity still exists, the method of drawing "map" can be adopted. First draw every low (or weak) place, and then stick a sticker on the back of the blanket (the thickness of the paper is selected according to the situation).