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warmly congratulate the institute of process engineering of chinese academy of sciences and shandong hengyuan waste technology co., ltd. on obtaining the patent certificate for the invention patent of "a kind of fly ash coated sludge ceramsite and its preparation method" applied on december 21, 2015.
patent no.: zl 2015 1 0964934.1
inventor: cao jianwei, zhao qingchao, wang zhi
yan mingming, ma liantao, wen peng
announcement date: march 23, 2018
address: no.9960, qushan road, chengguan street office, linqu county, shandong province 
service hotline: manager du 86 18853622696 / 0536-3717317
e-mail：831785@sdhylf.com record number:
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