Eight kinds of dangerous goods, strong corrosive, freight cargo than ordinary high, if the customer does not require, no tray. When air into the water, so is open, and which can send the samples as acid glacial acetic acid.
Other: Have strong corrosive, can make up water, desiccant.
 A wide range of uses, chemical, pharmaceutical, food, metal surface treatment, metallurgy, petroleum refining, papermaking, printing and dyeing, glass, leather, enamel, etc are applied.