Sodium chlorate sterilization principle of the virus caused by three kinds of action: Everyone knows that the main role of sodium chlorate kill the role of thro
General arrangements for the evening run sediment pool, early in the morning using a manual suction machine sucked sediment. Can not be dragged to pull late, be
Now pac profit has been compressed to a certain extent, the price change is not, the recent trend of price cuts, but the overall price is still stable ---------
Polyaluminium chloride purified water is not directly drinkable, Le Bang company believes that direct drinking can cause physical discomfort, severe or even ind
After adding PAC, in order to form alum, adjusted to 6-9 within the best. It may be the water quality of the PH value needs to be adjusted first water may be to