1, which does not contain any toxic, harmful or odorous substances;
2. The hardness of water is between 30 and 200 (calculated by calcium carbonate);
3. The mineral content needed by human body is moderate;
4. The 4.PH value is weakly alkaline (7-8);
5. Moderate dissolved oxygen and carbon dioxide in water (solubility, permeability, metabolism, emulsifying power, cleaning power, etc. ) are stronger.
6. The water mass is small;
7. Water has strong nutritional and physiological functions;
8. Raw water.