4399视频

電(dian)(dian)子科(ke)技(ji)領域(yu)內的技(ji)術開(kai)發、技(ji)術咨詢、技(ji)術服(fu)務；智能(neng)家居物聯(lian)網(wang)產(chan)品(pin)、高低壓(ya)電(dian)(dian)器成套設(she)(she)備(bei)及配件(jian)(jian)、通(tong)信(xin)電(dian)(dian)器、通(tong)訊設(she)(she)備(bei)、通(tong)訊產(chan)品(pin)、機電(dian)(dian)設(she)(she)備(bei)、儀器儀表、電(dian)(dian)子元器件(jian)(jian)、電(dian)(dian)子產(chan)品(pin)、電(dian)(dian)動(dong)工具、家用電(dian)(dian)器、制冷設(she)(she)備(bei)、計算機及配件(jian)(jian)、計算機軟件(jian)(jian)、電(dian)(dian)腦(nao)配套設(she)(she)備(bei)、打印設(she)(she)備(bei)、電(dian)(dian)腦(nao)耗材(cai)、數碼產(chan)品(pin)、安防監控系統、網(wang)絡(luo)游(you)戲點卡、實驗室(shi)設(she)(she)備(bei)、建筑裝飾材(cai)料線上(shang)銷售(shou)、上(shang)門(men)維修與(yu)保養(yang)。（依法須經批(pi)準(zhun)的項目(mu)，經相關部門(men)批(pi)準(zhun)后方可(ke)開(kai)展經營(ying)活動(dong)）