... (0.2mm to 0.45mm) and GranularUsageAgr.: buffer acid and alkali ,ion exchange , improve the soil and quality, protect the little plant ... Microbes, It is good potentiator of chemical fertilizer ,compound fertilizer and pesticide.Fishery: stimulate the phycophyta growth as a conditioner ... battery cathode inflation, as the additive of oil drilling and ceramics, made the mire easy to type, reduce the ...