Hubei Xiangyang water filter stone where people Yu Shiying

Water purification materials pebbles, prayer foil layer effect, we in the conventional water purifier can also be seen against the backdrop layer of gravel relevant reports, but use it as a water purification materials have certain specifications, to achieve this standard the case can only be used as water purification material. Index name analysis SiO2 content,% ≥ 98 Hydrochloric acid soluble rate,% ≤ 3.5 density, g / cm3 2.66 Bulk density, g / cm3 1.85