4399免费视频

一(yi).工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)類:建筑工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、市政工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、水利工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、公路橋梁工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、機電設備安裝工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、消(xiao)防工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、隧道工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、環(huan)保工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、鋼結(jie)構工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、電信工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、土(tu)石方工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、園林綠化工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、室內外裝飾工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、外墻(qiang)保溫(wen)工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)、地基(ji)基(ji)礎(chu)工(gong)(gong)程(cheng)(cheng)(cheng)(cheng)(cheng)等(deng)

二.服務類(lei):建筑(zhu)施(shi)工廢(fei)棄物治理(li)服務；建筑(zhu)施(shi)工勞務作業；機械設備的維修(xiu)及租賃等

三(san).建材(cai)(cai)(cai)類：商(shang)品混凝土攪拌加工、銷(xiao)售；建材(cai)(cai)(cai)、鋼(gang)材(cai)(cai)(cai)、石材(cai)(cai)(cai)、裝飾材(cai)(cai)(cai)料(liao)等銷(xiao)售