| 配方类型： |
LEATHER |
| 配方说明： |
Bleaching Tanning Extract (U.S. Patent 2,653,967) |
| 配方组成： |
Ammonium Vanadate (in 25 cc. Water)/0.25
Caustic Soda (in 25 cc. Water)/16
Quebracho Extract/3000
Sodium Hydrosulfite/45
Sodium formate/60 |
| 配制方法： |
Heat slowly to 95'C. and keep at 90 to 95'C. for 1 hour. Then cool. |
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