电话线20对30对50对100对200对通信电缆天联图片

p1Src=//y2.yzimgs.com/uploads/325319/201639-15462420.jpg?watermark/2/text/5aSp5rSl5biC55S157yG5oC75Y6C56ys5LiA5YiG5Y6C/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast"

aa