| 摘要 |
FIELD: soap production. SUBSTANCE: method involves making recess in soap lump in the process of manufacture; putting piece of soap remained upon consumption of other used soap lump into recess; applying contour corresponding to that of recess on package surface for visual comparison of size of soap piece introduced into recess with that of recess contour. EFFECT: simplified method and provision for convenient and wasteless usage. 3 cl, 5 dwg |
