日本欧美一区二区三区不卡视频_亚洲欧美日韩中文字幕一区二区_日韩免费视频一区二区_欧美黑人粗大猛烈18p

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