... 1.71±0.02mm2,Colour of surface purple3,Type of surface Soften4,Roughness of surface Ra 0.7~1.0μm5, ... Hardness of surface 68°±3°A6,Maximum linear extension 1%7,Maximum ... Iron sheet Printing, Continuous form Printingb, Characteristic of UV rubber blanket1, Incomparable printing effect2, Dot gain copy accurate3,Solid ... effective for unti-shock and unti-destroy UV rubber pringting blanket