4399视频

土木工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)建筑(zhu)、水(shui)電(dian)暖(nuan)安(an)裝(zhuang)、裝(zhuang)飾裝(zhuang)修工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；機(ji)電(dian)設備(bei)（不含特種(zhong)設備(bei)）安(an)裝(zhuang)；防(fang)水(shui)防(fang)腐保(bao)溫工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；市(shi)政公用工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；電(dian)子與智能化工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；鋼結構工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；消防(fang)設施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；城市(shi)及(ji)道路照明工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；水(shui)利水(shui)電(dian)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；電(dian)力工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；公路工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；礦山工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；橋梁隧道工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；環保(bao)工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；機(ji)場機(ji)道工(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)；建筑(zhu)機(ji)械租(zu)賃；房屋修繕(shan)。（依法須經批準的(de)項目，經相關部門(men)批準后方(fang)可開展經營活動(dong)）