Using the etching needle, litho crayon, various aquatint solutions, or greasy tusche washes on copperplates or lithostones, artist such as John Cage, E.

使用刻针，石版画有色粉笔，各种凹铜版腐蚀制版法，或者用多脂制版墨粉刷到铜板或石版上。