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Qiqihar, Heilongjiang 【Hecheng Park]]
Hecheng Park Happy World is the only existing large outdoor open playground in Qiqihar,Total floor area220000 square meters, the park has 50000 square meters of artificial lake, surrounded by green shade, and 28 large and medium-sized amusement facilities such as Ferris wheel, roller coaster, pirate ship, etc..ProjectWaterproof construction using Dayu GroupTPZSeries waterproofing membrane.Construction will start in 2019, with a waterproof construction area of 50000 square meters.

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