五月天欧美成人91综合视频网站|日本三级动态图白丝JK免费网站|日韩无码18P嗯啊快舔一区二区|99热手机精品国产成人精品在线|清清草国语对白亚洲欧洲在线视频|色区无码在线高清无码短视频|成人激情五月人干人免费观看|天堂精品久久超碰免费电影

Qingdao Haiwan Garden
    The total construction area is 38,800 square meters. Using the sewage source heat pump system for heating, compared with coal heating, the initial investment for heating and cooling equipment was reduced by 400,000 RMB. The energy station for this project is 520 square meters, which can provide heating for 50,000 square meters.