| 摘要 |
A printer rolling comprises a surface layer roughened by forming a plurality of lattice-shaped grooves such that a large number of diamond-shaped configurations are defined by the grooves, each diamond-shaped configuration including two diagonally facing corners each having an angle of 20 to 160 DEG , or by forming a number of parallel grooves each forming an angle of 10 to 80 DEG with the axis of the metal core, so as to form a continuous groove. <IMAGE> |
