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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 18908.1-2002 |
Specified time relays for industrial use--Part 1:Requirements and tests 工业用时间继电器 第1部分:要求和试验 |
China National Standards Specified time relays |
 English PDF |
| GB/T 15633-1995 |
Single input energizing quantify measuring relays and protective equipment with nonspecified-time 非定时限单输入激励量的量度继电器及保护装置 |
China National Standards Specified time relays |
English PDF |
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