国产精品美女久久久久av超清_法国空姐电影在线_国产999久久久_女仆男又爽又黄免费女仆视频_www黄色网址_午夜的福利_国产内射爽爽大片_污污视频在线_搞中出视频_麻豆精产国品_一二三精品_手机电影在线观看_日韩一区二区三区视频在线_乱老熟女一区二区三区_亚洲欧美丝袜中文综合

Steel security room saving and environmentally friendly

Guangzhou Steel News: Steel affordable housing saving and environmentally friendly

China's largest steel structure in the construction of affordable housing projects - completion of construction of the main structure Qianjiang Century talent special space. It is understood that a 32-story steel construction of 60 days can top knot, the biggest bright spot is energy saving. The project is 80% of construction materials for the steel, 60% reduction in the construction of garbage, prefabricated construction site also cut 80 percent of the noise, dust and water. The world's leading construction system from Hangxiao third generation "steel beam" technology, has applied for a patent in more than 110 countries worldwide. Guangzhou Steel