品牌cctv型號cctv線芯材質裸銅線芯數(shù)3+1護套材質PVC電線最大外徑4.5（mm）主要用途攝像機延長產(chǎn)品認證CCC 我公司??生?攝像機延長200米線 ,?控?材，有意??系！！We are?supplier of high quality cctv / av extension cables.?We have 2x RCA connectors and one 2,1mm DC connector at each end. The cables must provide clean image with no interference and clean audio.??ranging from 20 to 50 meters long.。