Gongyi City East Water Purifying Materials Co., Ltd. under the four plants: the plant of Dong Jia activated carbon
(coconut shell activated carbon, apricot shell activated carbon, coal columnar activated carbon, powdered
activated carbon), water treatment chemicals plant of Dong Jia (polymerization chloridealuminum, ferric chloride,
aluminum chloride, polyacrylamide, calcium aluminate powder) Dong Jia water filter plant (anthracite filter,
manganese sand filter, quartz sa...
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