On December 4th, in commemoration of the sixth National Constitution Day, during China's second Constitution Promotion Week, as the first legal publicity and education base of the Haihe Water Conservancy Commission, the Haihe Downstream Bureau Duliujian River Damp proof Sluice Management Office (hereinafter referred to as the Damp proof Sluice Management Office), together with member units of the Nangang Industrial Zone Management Committee and the Duliujian River Mouth Regional Joint Law Enforcement Office ..
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