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deep etch for aluminum
| 配方类型： |
METAL TREATMENTS |
| 配方组成： |
calcium chloride sol'n. (40? be)/to make 1.00 qt
ammonium bromide/16.0 g
hydrochlorid acid (conc. C.P.)/14.2 cc
copper chloride/81.1 g |
| 配制方法： |
mix all ingredients together until uniform.
NOTE: this is a controlled etch for aluminum since its action produces no undercut. the depression produced has almost straight walls, closing in slightly at bottom. |
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