4399在线视频免费观看

高、低壓(ya)成套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)設(she)備、箱式變(bian)(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)站(zhan)、JP柜(ju)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)計量(liang)箱、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜分(fen)支箱、端子箱、各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)用柜(ju)體、成套(tao)高低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器、變(bian)(bian)壓(ya)器、輸(shu)配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)鐵(tie)塔、通信(xin)(xin)塔、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)鋼管桿、鋼結構、鐵(tie)附件、母線槽、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜橋(qiao)架(jia)研(yan)發(fa)(fa)、生產(chan)(chan)、維修(xiu)、銷(xiao)(xiao)售(shou); 風(feng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、光(guang)伏(fu)(fu)接入(ru)升壓(ya)變(bian)(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)裝(zhuang)(zhuang)(zhuang)(zhuang)置及(ji)(ji)集成測(ce)控(kong)組合變(bian)(bian)壓(ya)器、開閉所、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜分(fen)接箱、特種變(bian)(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)備的設(she)計、研(yan)發(fa)(fa)、生產(chan)(chan)、銷(xiao)(xiao)售(shou)與維修(xiu)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣設(she)備設(she)計（不含生產(chan)(chan)）、安裝(zhuang)(zhuang)(zhuang)(zhuang)、租賃服(fu)(fu)務(wu)(wu)(wu)(wu)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)金具(ju)、太陽能(neng)(neng)路(lu)燈(deng)、市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)燈(deng)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)施工(gong)(gong)機具(ju)、防爆電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器、汽(qi)車配件、金屬材料(liao)（不含貴金屬及(ji)(ji)國(guo)家專控(kong)產(chan)(chan)品）、建(jian)筑(zhu)材料(liao)銷(xiao)(xiao)售(shou)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)系統(tong)自動化(hua)及(ji)(ji)控(kong)制裝(zhuang)(zhuang)(zhuang)(zhuang)置、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)智能(neng)(neng)設(she)備的研(yan)發(fa)(fa)、生產(chan)(chan)、銷(xiao)(xiao)售(shou)及(ji)(ji)安裝(zhuang)(zhuang)(zhuang)(zhuang)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)技(ji)術(shu)研(yan)發(fa)(fa)與咨(zi)詢服(fu)(fu)務(wu)(wu)(wu)(wu)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)通信(xin)(xin)產(chan)(chan)品的銷(xiao)(xiao)售(shou)及(ji)(ji)技(ji)術(shu)咨(zi)詢服(fu)(fu)務(wu)(wu)(wu)(wu)；節(jie)能(neng)(neng)技(ji)術(shu)服(fu)(fu)務(wu)(wu)(wu)(wu)、光(guang)伏(fu)(fu)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)及(ji)(ji)光(guang)伏(fu)(fu)建(jian)筑(zhu)一體化(hua)產(chan)(chan)品的生產(chan)(chan)、銷(xiao)(xiao)售(shou)、安裝(zhuang)(zhuang)(zhuang)(zhuang)、售(shou)后(hou)服(fu)(fu)務(wu)(wu)(wu)(wu)及(ji)(ji)技(ji)術(shu)咨(zi)詢服(fu)(fu)務(wu)(wu)(wu)(wu)；環(huan)保綜合節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器和高效節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器生產(chan)(chan)、銷(xiao)(xiao)售(shou)及(ji)(ji)安裝(zhuang)(zhuang)(zhuang)(zhuang)服(fu)(fu)務(wu)(wu)(wu)(wu)；新能(neng)(neng)源技(ji)術(shu)研(yan)究及(ji)(ji)推廣服(fu)(fu)務(wu)(wu)(wu)(wu)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)工(gong)(gong)程設(she)計、施工(gong)(gong)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)設(she)施承裝(zhuang)(zhuang)(zhuang)(zhuang)（修(xiu)、試(shi)）；輸(shu)變(bian)(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)(gong)程、機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)(gong)程、城市(shi)及(ji)(ji)道路(lu)照明(ming)工(gong)(gong)程、市(shi)政工(gong)(gong)程、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)節(jie)能(neng)(neng)改造工(gong)(gong)程施工(gong)(gong)；火電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、風(feng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)備安裝(zhuang)(zhuang)(zhuang)(zhuang)；建(jian)筑(zhu)施工(gong)(gong)勞務(wu)(wu)(wu)(wu)作業；售(shou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)業務(wu)(wu)(wu)(wu)；配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)業務(wu)(wu)(wu)(wu)；。（依法須經(jing)批準(zhun)的項目，經(jing)相關(guan)部(bu)門批準(zhun)后(hou)方(fang)可開展(zhan)經(jing)營活(huo)動）