SJ电子行业标准 SJ/T 1563-2014 实心聚四氟乙烯绝缘同轴射频电缆 SJ/T 1563-2014.Coaxial radio-frequency cables with solid polytetrafluoroethylene (PTFE) insulation. ... 01月11日SJ/T 1563 阅读全文