4399免费视频

建筑工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)施工(gong)(gong)(gong)總承(cheng)(cheng)包(bao)(bao)(bao)(bao)貳級，鋼結(jie)構工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)專業(ye)承(cheng)(cheng)包(bao)(bao)(bao)(bao)貳級，防水(shui)(shui)防腐保溫(wen)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)專業(ye)承(cheng)(cheng)包(bao)(bao)(bao)(bao)貳級，建筑裝(zhuang)修裝(zhuang)飾工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)專業(ye)承(cheng)(cheng)包(bao)(bao)(bao)(bao)貳級，石(shi)油化工(gong)(gong)(gong)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)施工(gong)(gong)(gong)總承(cheng)(cheng)包(bao)(bao)(bao)(bao)叁(san)級，市政工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)施工(gong)(gong)(gong)總承(cheng)(cheng)包(bao)(bao)(bao)(bao)叁(san)級，水(shui)(shui)利水(shui)(shui)電施工(gong)(gong)(gong)總承(cheng)(cheng)包(bao)(bao)(bao)(bao)叁(san)級；園林綠(lv)化工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)，機(ji)械設備(bei)安裝(zhuang)與租賃(lin)，土石(shi)方(fang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)，土方(fang)回填，溫(wen)室大(da)棚(peng)改(gai)造(zao)，模板腳手架工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)，地基基礎(chu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)專業(ye)承(cheng)(cheng)包(bao)(bao)(bao)(bao)，起重設備(bei)安裝(zhuang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)專業(ye)承(cheng)(cheng)包(bao)(bao)(bao)(bao)，機(ji)電工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)安裝(zhuang)，環保工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)施工(gong)(gong)(gong)，房屋拆(chai)除工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)施工(gong)(gong)(gong)（不含爆破），消防工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)施工(gong)(gong)(gong)；建材銷(xiao)售；混凝土預制構件加工(gong)(gong)(gong)及銷(xiao)售。（依(yi)法須經批準的(de)項目(mu)，經相關(guan)部門批準后(hou)方(fang)可開(kai)展經營活(huo)動）