PTY23铁路信号电缆具体型号 PTY2... 天津市电缆总厂第一分厂官方网站

p1Src=//y2.yzimgs.com/uploads/485485/2016223-122847334.jpg?watermark/2/text/5aSp5rSl5biC55S157yG5oC75Y6C56ys5LiA5YiG5Y6C5a6Y5pa5572R56uZ/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast"

aa