4399在线视频免费观看

經(jing)(jing)營(ying)(ying)范圍包含：電(dian)(dian)(dian)(dian)力變(bian)配(pei)電(dian)(dian)(dian)(dian)開(kai)關設備、電(dian)(dian)(dian)(dian)力熱控(kong)自(zi)動化設備研發、制(zhi)造、安(an)裝(zhuang)，高(gao)低壓(ya)變(bian)頻裝(zhuang)置(zhi)組裝(zhuang)、制(zhi)造、安(an)裝(zhuang)，高(gao)低壓(ya)變(bian)頻節(jie)能系統(tong)工(gong)程(cheng)設計(ji)、安(an)裝(zhuang)、調(diao)試（依據電(dian)(dian)(dian)(dian)力部門(men)核發《電(dian)(dian)(dian)(dian)力設施(shi)承裝(zhuang)修許可證(zheng)》開(kai)展(zhan)(zhan)經(jing)(jing)營(ying)(ying)活(huo)(huo)動），環(huan)保設備、鍋爐配(pei)件、管(guan)道閥門(men)、高(gao)低壓(ya)配(pei)電(dian)(dian)(dian)(dian)柜、金(jin)屬材(cai)料的銷售，網(wang)絡工(gong)程(cheng)（不含互(hu)聯網(wang)上(shang)網(wang)服務(wu)及(ji)電(dian)(dian)(dian)(dian)信增值服務(wu)），電(dian)(dian)(dian)(dian)子設備的安(an)裝(zhuang)、維修、調(diao)試及(ji)技術咨詢(xun)服務(wu)，綜合布線(xian)，室(shi)內(nei)外裝(zhuang)飾裝(zhuang)潢(huang)工(gong)程(cheng)，景觀綠化工(gong)程(cheng)，水電(dian)(dian)(dian)(dian)暖安(an)裝(zhuang)工(gong)程(cheng)，照明(ming)工(gong)程(cheng)設計(ji)與施(shi)工(gong)，外墻(qiang)防腐保溫(wen)工(gong)程(cheng)，銷售：礦產(chan)品（不含專控(kong)）、粉煤(mei)灰、建筑(zhu)材(cai)料。（依法需經(jing)(jing)批準的項目(mu)，經(jing)(jing)相關部門(men)批準后方可開(kai)展(zhan)(zhan)經(jing)(jing)營(ying)(ying)活(huo)(huo)動）。