Description
1. Refined petroleum
After the petroleum products are washed with sulfuric acid, some acidic substances must be washed with sodium hydroxide solution and then washed to obtain refined products
Ii. Printing and Dyeing
Third, textile fibers
4. Paper Making
5. Improving the soil with lime.
6. Chemicals and chemical reagents
Seven, rubber, leather
8. Metallurgy, electroplating
The role of other aspects
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