TB/T 2293-1991
(150, 450MHz train radio repeaters, leaKy coaxial cable standard series and the main technical conditions) 150 450mhz铁路列车无线中继器 漏泄同轴电缆制式系列及主要技术条件 |
GB/T 13065-1991
BlanK detail specification of gas discharge tubes for overvoltage protection 过电压保护气体放电管空白详细规范 (可供认证用) |
Find out:19073Items | First -Previous-Next -Last | [361] [362] [363] [364] [365] [366] [367] |