SJ电子行业标准 SJ 50973/37-2008 实心聚四氟乙烯绝缘柔软射频电缆详细规范 SJ 50973/37-2008.Cables,radio frequency, flexible, solid PTFE dielectric,type SFF-50-7-51,detail spe... 12月31日SJ 50973/37 阅读全文