国产剧情AV麻豆香蕉精品,国产女人A级毛片18视频,人妻丰满熟人熟妇av无码,久久99国产精品9床震网站

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