4399在线视频免费观看

市政(zheng)工(gong)(gong)(gong)(gong)(gong)程(cheng)、管道(dao)工(gong)(gong)(gong)(gong)(gong)程(cheng)、環境及土(tu)地整(zheng)治工(gong)(gong)(gong)(gong)(gong)程(cheng)、建(jian)筑裝飾工(gong)(gong)(gong)(gong)(gong)程(cheng)、園(yuan)林綠化工(gong)(gong)(gong)(gong)(gong)程(cheng)的施工(gong)(gong)(gong)(gong)(gong)；工(gong)(gong)(gong)(gong)(gong)程(cheng)測量(liang)勘探(tan)；數據采集整(zheng)理(li)；信息系統(tong)集成(cheng)；工(gong)(gong)(gong)(gong)(gong)程(cheng)檢測；管道(dao)檢測、測漏、清洗、疏通(tong)；管道(dao)防腐及非開挖修(xiu)復施工(gong)(gong)(gong)(gong)(gong)；建(jian)筑材(cai)料（不含有毒、有害(hai)物質超過國家標準(zhun)的建(jian)筑和裝修(xiu)材(cai)料），五金勞保用品、工(gong)(gong)(gong)(gong)(gong)業機器人，工(gong)(gong)(gong)(gong)(gong)程(cheng)機械設備銷(xiao)售及租賃(lin)；車輛租賃(lin)；道(dao)路(lu)普通(tong)貨物運(yun)輸；建(jian)筑勞務分包。（依法須經(jing)批(pi)(pi)準(zhun)的項目(mu)，經(jing)相關部門(men)批(pi)(pi)準(zhun)后方(fang)可開展(zhan)經(jing)營活動(dong)）