久久免费视频观看,最新国产福利在线,av毛片在线看,久久久精品在观看999,人人爽人人看,国产久热香蕉在线观看,国产精品99精品久久免费

Company News
The engineering method that declared by our group wins the national first-grade

 Recently, three of four state-level engineering methods that declared by our group have been approved, which contain the national first-grade engineering method “the construction method of cambered ceramic plate curtain wall with adjustable cantilever, without beam” (co-edit with Shandong NingJian), the national second-grade engineering method “the construction method of hyperboloid Aluminum single board curtain wall with squama style installation” (co-edit with Shandong NingJian) and “the construction method of UF cast-in-place and thermal insulation” (co-edit with Shandong Wanxin).