5对，10对，20对，30对，50对大对数通信电缆图片

p1Src=//y2.yzimgs.com/uploads/325319/2016119-102350637.jpg?watermark/2/text/5aSp5rSl5biC55S157yG5oC75Y6C56ys5LiA5YiG5Y6C/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast"

aa