RS485通信 ASTP-120Ω2*1.5截面多大 RS485通信 ASTP-120Ω2*1.5截面多大 MKVV|天津市电缆总厂第一分厂

p1Src=//y1.yzimgs.com/uploads/326791/2017831-02147853.jpg?watermark/2/text/TUtWVnzlpKnmtKXluILnlLXnvIbmgLvljoLnrKzkuIDliIbljoI=/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast