You are 26 ~ 30 content, Beijing haichangqing manufacturers reliable quality price is not high, you can go to their warehouse to see the goods, I have been to a
The existence of liquid, but the boiling point and the melting point of the pressure is not the same, under normal pressure only sublimation boiling point.
Need your plant products PAC, as well as letters of guarantee, electronic keys, your certificate of honor, after-sales service
Your sewage concentration, ah, the general solid dissolved in water, the liquid form by metered into the water to be prepared (3% ~ 5%), and the organic polymer
.PAC is polyaluminium chloride, used in industrial water treatment as a flocculant, organic macromolecules can increase the solid particles, so that the solid p