| 摘要 |
A rubber-coated ink transfer roll having a hardness range of from 20 to 80 Shore A and a mean depth of roughness Rz of from 30 to 80 mum and a maximum depth of roughness Rmax of from 40 to 120 mum, a free specific volume V1 from 0.001 to 0.1 mm3/mm2 and a free specific volume V2 from 0.02 to 1.5 mm3/mm2.
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