SJ电子行业标准 SJ 50973/9-1998 SFF-50-6-51型聚四氟乙烯绝缘柔软射频电缆详细规范 SJ 50973/9-1998.Cables,radio frequency, flexible,polytetrathuoroethylene (PTFE) insulation type SFF-... 01月16日SJ 50973/9 阅读全文