4399在线视频免费观看

一般(ban)項目：物聯網(wang)技(ji)(ji)術(shu)(shu)(shu)服務；技(ji)(ji)術(shu)(shu)(shu)服務、技(ji)(ji)術(shu)(shu)(shu)開發(fa)、技(ji)(ji)術(shu)(shu)(shu)咨詢、技(ji)(ji)術(shu)(shu)(shu)交(jiao)流、技(ji)(ji)術(shu)(shu)(shu)轉(zhuan)讓、技(ji)(ji)術(shu)(shu)(shu)推廣；計算機(ji)軟硬(ying)件及(ji)輔助設(she)(she)備(bei)(bei)批發(fa)；計算機(ji)軟硬(ying)件及(ji)輔助設(she)(she)備(bei)(bei)零售(shou)(shou)(shou)；家用(yong)電器(qi)(qi)銷售(shou)(shou)(shou)；電子(zi)產(chan)品(pin)銷售(shou)(shou)(shou)；五金(jin)產(chan)品(pin)零售(shou)(shou)(shou)；五金(jin)產(chan)品(pin)批發(fa)；電線、電纜經營；音響設(she)(she)備(bei)(bei)銷售(shou)(shou)(shou)；照明器(qi)(qi)具(ju)銷售(shou)(shou)(shou)；幻(huan)燈及(ji)投影設(she)(she)備(bei)(bei)銷售(shou)(shou)(shou)；廣播影視設(she)(she)備(bei)(bei)銷售(shou)(shou)(shou)；辦公設(she)(she)備(bei)(bei)銷售(shou)(shou)(shou)；智能(neng)儀(yi)器(qi)(qi)儀(yi)表銷售(shou)(shou)(shou)；教學專用(yong)儀(yi)器(qi)(qi)銷售(shou)(shou)(shou)；顯示(shi)器(qi)(qi)件銷售(shou)(shou)(shou)；信(xin)息(xi)系統集(ji)成服務；安防設(she)(she)備(bei)(bei)銷售(shou)(shou)(shou)；儀(yi)器(qi)(qi)儀(yi)表銷售(shou)(shou)(shou)。