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Hang off a part and fill the color.
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If you are near Beijing and Tianjin, I can help you contact the master to solve it (paid).
Too much!
1.Soda ash (alkali surface) reacts with vinegar; Or steamed steamed bread reacts with alkali-acid and Na2CO3 2Roasted fish, vinegar and cooking wine are added to remove the fish, esterification reaction (to produce ethyl acetate)3 >>>More
Some people are allergic to paint and can resign from the company.
You're so bored, strong acids and strong alkalis are fine.
1. Kitchen supplies can do a lot of chemical experiments. >>>More
Hello! The peculiar smell of clothing is mainly related to the material and fabric, the production process, if there is a peculiar smell, it is recommended to use the following methods to improve: >>>More