配方类型: |
INTRODUCTION |
配方组成: |
powdered ester gum/9 wood flour/30 collodion/86 |
配制方法: |
allow the first two ingredients to stand until dissolved, stirring from time to time. then, while stirring, add the wood flour, a little at a time, until uniform. this product can be made softer by adding more coolodion. |
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