Device quantity: 22 sets
Project introduction: A large number of lotus tanks are placed underwater on the surface of Beijing Houhai Lake. In order to prevent the large porcelain tanks from freezing and cracking underwater in winter, 22 sets of MDD are installed along the west coast to prevent freezing on the water surface. Up to ten of thousands of square meters. Due to the arrival of wild animals, a large number of citizens are attracted to stop and visit.