<p>Water conservancy stocks fluctuated and strengthened, with Hanjian Heshan and Chengbangshare both hitting the daily limit, GuoTong and SWPD rising over 5%, and companies like Guanlong Energy Saving, Qinglong Pipe Industry, Sanhe Pile, and QJSL also following suit</p>

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<p>Water conservancy stocks fluctuated and strengthened, with Hanjiang Heshan and Chengbangshare both hitting the daily limit, GuoTong and SWPD rising over 5%, and companies like Guanlong Energy Saving, Qinglong Pipe Industry, Sanhe Pile, and QJSL also following suit</p>

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