... formaldehyde resinApplication Field:1. It is mainly used for waste water treatment for printing, dyeing, textile, mining, ... -40 times water and then dosed into the waste water directly. After being mixed for several minutes ... used with the help of polyaluminum chloride, but not mixed together. In this way, the treatment cost ... can be stored at room temperature, it can not be placed in the sun. 2. It is ...