4399免费视频

公(gong)路(lu)、獨(du)立橋梁(liang)(liang)(liang)和隧道(dao)的(de)(de)建設(she)(she)、經(jing)營；城市軌道(dao)及(ji)(ji)(ji)地下工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)建設(she)(she)；市政道(dao)路(lu)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)、市政公(gong)用工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)、市政園林(lin)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)；建筑裝(zhuang)修工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)；水(shui)(shui)(shui)利水(shui)(shui)(shui)電(dian)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)；生態環境(jing)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)；鋼結構及(ji)(ji)(ji)機(ji)電(dian)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)；軍民(min)融(rong)合(he)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)；醫療、教育、文化等(deng)公(gong)共服(fu)務(wu)(wu)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)及(ji)(ji)(ji)其他(ta)；基礎設(she)(she)施(shi)(shi)(shi)項目(mu)建設(she)(she)、運營以及(ji)(ji)(ji)開展(zhan)相關工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)總承(cheng)包(bao)(bao)(bao)(bao)、工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)總承(cheng)包(bao)(bao)(bao)(bao)、項目(mu)管理業(ye)務(wu)(wu)。道(dao)路(lu)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)養(yang)護、維修、保養(yang)；建筑防(fang)水(shui)(shui)(shui)；特種專(zhuan)業(ye)加(jia)固(gu)（橋梁(liang)(liang)(liang)）及(ji)(ji)(ji)上(shang)述有關設(she)(she)備租賃(lin)(lin)；道(dao)路(lu)及(ji)(ji)(ji)橋梁(liang)(liang)(liang)檢測及(ji)(ji)(ji)有關設(she)(she)備租賃(lin)(lin)；交(jiao)通安全設(she)(she)施(shi)(shi)(shi)、收費設(she)(she)施(shi)(shi)(shi)的(de)(de)生產、加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、安裝(zhuang)、銷售(shou)(shou)；橋梁(liang)(liang)(liang)伸縮縫產品及(ji)(ji)(ji)其他(ta)橋梁(liang)(liang)(liang)附(fu)件(jian)（包(bao)(bao)(bao)(bao)括橋梁(liang)(liang)(liang)橡膠產品、密(mi)封(feng)條、彈性元件(jian)、防(fang)水(shui)(shui)(shui)材料、支座、錨具、鋼絞(jiao)線、鋼模(mo)板(ban)、特種混凝土）生產、加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、銷售(shou)(shou)、安裝(zhuang)及(ji)(ji)(ji)相應技術(shu)服(fu)務(wu)(wu)；大型鋼結構及(ji)(ji)(ji)機(ji)械加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)產品的(de)(de)生產及(ji)(ji)(ji)銷售(shou)(shou)；工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)材料的(de)(de)經(jing)營與(yu)銷售(shou)(shou)（鋼筋、水(shui)(shui)(shui)泥、瀝青、砂石料、木材）；公(gong)路(lu)橋梁(liang)(liang)(liang)新技術(shu)、新材料、新工(gong)(gong)(gong)(gong)(gong)(gong)藝的(de)(de)技術(shu)開發及(ji)(ji)(ji)服(fu)務(wu)(wu)；施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)勞(lao)務(wu)(wu)分包(bao)(bao)(bao)(bao)；房屋租賃(lin)(lin)、機(ji)械設(she)(she)備租賃(lin)(lin)服(fu)務(wu)(wu)。（依法須經(jing)批準的(de)(de)項目(mu)，經(jing)相關部門(men)批準后(hou)方(fang)可開展(zhan)經(jing)營活(huo)動）。