Won the bid for the expansion project of the First Waterworks in Xiangtan, Hunan (international bidding)
Solved the clogging issue of upflow filter
Completed projects in Thailand and Angola
Successfully developed Qingquan Modules
Developed three internationally advanced scientific and technological achievements and products, and took the lead in drafting two industry standards
Low cost solves the problem of concentrated water treatment
2002
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1995-2000
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2001-2006
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2007-2011
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2012-2015
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2016-2020
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2021-至今