凹凸印刷 āo tū yìn shuā

DEFINITIONS

  1. embossing
  2. die stamping

CHARACTERS

凹 āo concave, hollow, depressed; a pass, valley
凸 tū protrude, bulge out, convex
印 yìn print, seal, stamp, chop, mark
刷 shuā brush; clean with brush, scrub