4399在线视频免费观看

公(gong)路(lu)(lu)、獨(du)立橋梁(liang)(liang)和(he)隧道(dao)的建(jian)(jian)設(she)(she)(she)(she)、經(jing)營；城(cheng)市軌(gui)道(dao)及(ji)(ji)地下工(gong)(gong)(gong)程(cheng)(cheng)(cheng)建(jian)(jian)設(she)(she)(she)(she)；市政道(dao)路(lu)(lu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)、市政公(gong)用工(gong)(gong)(gong)程(cheng)(cheng)(cheng)、市政園林工(gong)(gong)(gong)程(cheng)(cheng)(cheng)；建(jian)(jian)筑裝(zhuang)(zhuang)修(xiu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)；水(shui)利水(shui)電(dian)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)；生(sheng)態環境工(gong)(gong)(gong)程(cheng)(cheng)(cheng)；鋼(gang)結構及(ji)(ji)機電(dian)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)；軍民(min)融合工(gong)(gong)(gong)程(cheng)(cheng)(cheng)；醫療(liao)、教育、文(wen)化(hua)等公(gong)共服(fu)務工(gong)(gong)(gong)程(cheng)(cheng)(cheng)及(ji)(ji)其他；基礎設(she)(she)(she)(she)施項(xiang)目(mu)建(jian)(jian)設(she)(she)(she)(she)、運營以(yi)及(ji)(ji)開展(zhan)相關(guan)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)施工(gong)(gong)(gong)總(zong)承包、工(gong)(gong)(gong)程(cheng)(cheng)(cheng)總(zong)承包、項(xiang)目(mu)管(guan)理業務。道(dao)路(lu)(lu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)養護、維修(xiu)、保養；建(jian)(jian)筑防(fang)水(shui)；特種(zhong)專業加(jia)固（橋梁(liang)(liang)）及(ji)(ji)上述有關(guan)設(she)(she)(she)(she)備(bei)租(zu)賃(lin)(lin)(lin)；道(dao)路(lu)(lu)及(ji)(ji)橋梁(liang)(liang)檢測及(ji)(ji)有關(guan)設(she)(she)(she)(she)備(bei)租(zu)賃(lin)(lin)(lin)；交通安全(quan)設(she)(she)(she)(she)施、收費設(she)(she)(she)(she)施的生(sheng)產(chan)、加(jia)工(gong)(gong)(gong)、安裝(zhuang)(zhuang)、銷售(shou)；橋梁(liang)(liang)伸縮縫(feng)產(chan)品及(ji)(ji)其他橋梁(liang)(liang)附(fu)件(jian)（包括(kuo)橋梁(liang)(liang)橡膠產(chan)品、密(mi)封(feng)條、彈性元(yuan)件(jian)、防(fang)水(shui)材(cai)料、支(zhi)座、錨(mao)具、鋼(gang)絞線、鋼(gang)模板、特種(zhong)混凝土）生(sheng)產(chan)、加(jia)工(gong)(gong)(gong)、銷售(shou)、安裝(zhuang)(zhuang)及(ji)(ji)相應技術服(fu)務；大型鋼(gang)結構及(ji)(ji)機械(xie)加(jia)工(gong)(gong)(gong)產(chan)品的生(sheng)產(chan)及(ji)(ji)銷售(shou)；工(gong)(gong)(gong)程(cheng)(cheng)(cheng)材(cai)料的經(jing)營與銷售(shou)（鋼(gang)筋、水(shui)泥、瀝青、砂石(shi)料、木材(cai)）；公(gong)路(lu)(lu)橋梁(liang)(liang)新技術、新材(cai)料、新工(gong)(gong)(gong)藝的技術開發及(ji)(ji)服(fu)務；施工(gong)(gong)(gong)勞(lao)務分(fen)包；房屋(wu)租(zu)賃(lin)(lin)(lin)、機械(xie)設(she)(she)(she)(she)備(bei)租(zu)賃(lin)(lin)(lin)服(fu)務。（依法須經(jing)批準的項(xiang)目(mu)，經(jing)相關(guan)部門批準后(hou)方可開展(zhan)經(jing)營活動(dong)）。