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Antique Coloring for Copper
| 配方类型： |
ELEMENTARY Preparations |
| 配方组成： |
acetic acid/1 oz
water/2 oz
copper nitrate/4 oz |
| 配制方法： |
dissolve by stirring together in glass or porcelain vessel pack into glass bottles.
wet the copper to be colored and apply the coloring solution hot |
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