GYTA光缆4B截面多大 MHYV|天津市电缆总厂第一分厂

p1Src=//y3.yzimgs.com/uploads/175499/2020116-204523223.jpg?watermark/2/text/TUhZVnzlpKnmtKXluILnlLXnvIbmgLvljoLnrKzkuIDliIbljoI=/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast"