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| Chinese National Standard Category: Electric traction equipment |
| English Title: | Main Circuit Contact, Serial Size, Specification of Narrow Gauge Industrial and Mining Electric Locomotive |
| Chinese Title: | 窄轨工矿电机车主电路触头 系列尺寸、技术条件 |
| Standard No.: | JB/T 3270-1991 |
| Category No.: | K63 |
| Issued by: | Ministry of Machine Building |
| Issued on: | 1992-10-24 |
| Implemented on: | 1992-10-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | JB 3270-1983 |
| Word Count: | 3000 words |
| Similar Standards: | T/ZZB 0061-2016 JB/T 3171-1982 GB/T 16318-2021 GB/T 10762-2021 GB/T 999-2021 CJ/T 311-2009 GB/T 999-2008 JB/T 10773-2007 JB/T 10774-2007 JB/T 2933-2007 JB/T 10772-2007 GB/T 10762-2005 GB/T 2900.36-2003 GB/T 18038-2000 JB/T 10100-1999 JB/T 6480.2-1999 GB/T 2900.36-1996 JB/T 8743-1998 JB/T 8665-1997 JB/T 3114-1997 |
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