... comminution technology, special formula and agglomeration techniques, and used with the ceramic ball for water purifiers, textile and health ... 7.2~7.6 Insoluble, gradually releasing mineral substancePacking & Storage: Packing with plastic bags, 10kg/bag, or customized Keep from raining, ... moisture. Stored in dry place.Use Instruction: Should wash with clean water for two times in advance, then can ...