So it will be suspended in water, PVC in the course of use, produce a certain percentage of sediment, but the proportion of the sediment is not large, the pool
30 content is better. Because it is processed from natural aluminum stone, aluminum content is high, the content is too low with the use of good If you can priv
Determination of the content of the process does not change color, first find out whether the use of reagents expired. Whether it has not been used for a long t
At the same time and hydrogen atoms can form hydrogen bonds, and flocculation can react with aluminum ions can be combined to form a complex
In the purification of various water sources has a wide range of uses. As a precipitate separated from the water, the floc forms quickly. Role: can sterilizatio