4399在线视频免费观看

從事于環保設(she)備(bei)技術研發、銷售、安裝服(fu)(fu)務(wu)，環保設(she)備(bei)監測運行維護，噪(zao)音(yin)、污廢水、廢氣(qi)治(zhi)理(li)工(gong)(gong)(gong)程的(de)設(she)計、施(shi)工(gong)(gong)(gong)固(gu)體(ti)廢物治(zhi)理(li)，生態(tai)環境咨詢(xun)服(fu)(fu)務(wu)，環境監測，環境評價，工(gong)(gong)(gong)業(ye)自動(dong)化(hua)(hua)設(she)備(bei)、機械設(she)備(bei)及配件、儀器儀表、監控安防(fang)設(she)備(bei)、計算機軟硬件及周邊電子設(she)備(bei)、化(hua)(hua)工(gong)(gong)(gong)原料（不含危險化(hua)(hua)學品）的(de)批發、零售，建(jian)筑安裝工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)，機械設(she)備(bei)維修(xiu)服(fu)(fu)務(wu)。