无码不卡aⅴ东京热毛片_特黄特级特爽视频播放_国产又色又爽又黄好_玩丰满女领导对白露脸视频_中文无码素人_亚洲精品综合欧美二区不卡_精品国产污网站在线看_麻豆成人在线视频_va看看少妇性a渴videos_日韩高清无码理论

cn

Pingtan Comprehensive Experimental Zone Underground Comprehensive Pipe Gallery

The trunk line of the underground integrated pipe gallery in the Pingtan Comprehensive Experimental Zone is integrated into the pipelines of electricity, communication, water supply, reclaimed water, gas, local rainwater, sewage, slow-travel bridges and pedestrian overpasses, and 13 types of integrated pipe gallery are designed, with a total length of 30.055 kilometers. The total investment is 3.818 billion yuan, and the Himoer embedded groove system is used in this project.