300MM 电缆 结构图_国标 300MM 电... 天津市电缆总厂第一分厂官方网站

p1Src=//y3.yzimgs.com/uploads/485485/201615-181542673.jpg?watermark/2/text/5aSp5rSl5biC55S157yG5oC75Y6C56ys5LiA5YiG5Y6C5a6Y5pa5572R56uZ/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast"