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| International Standard Category: Insulating gases |
GB/T 5021-1985 Rigid mica material for commutator separators
换向器云母板 ;
| Category No.: | 29.040.20 | Valid Status: | superseded |
| Issued Organization: | Issued Date: | 1985-03-27 | |
| Implemented Date: | 1986-1-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 5021-2002 Commutator separators and materials |
Superseded Date: | 2003-1-1 |
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