五月天婷五月天综合网站_国产精品ⅴ无码大片在线看_亚洲综合久久五月丁香_亚在线观看免费视频入口

專業從事高清數字監控(kong)、安(an)防監控(kong)工(gong)程(cheng)、集團電話、電話交換機調試、維護,弱(ruo)電工(gong)程(cheng)、綜合(he)布線等工(gong)程(cheng)。

專業為(wei)小區(qu)、學校、工(gong)廠等場所從事弱電工(gong)程(cheng),視頻監(jian)控工(gong)程(cheng),LED顯示屏,網絡(luo)數字監(jian)控系(xi)統(tong)(tong),報警系(xi)統(tong)(tong),樓宇對講,門禁系(xi)統(tong)(tong),停車場管(guan)理(li)收(shou)費(fei)系(xi)統(tong)(tong)。