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International Standard Category: Insulating gases |
Category No.: | 29.040.20 | Valid Status: | abolished |
Issued Organization: | China Electrical Equipment Industry Association | Issued Date: | 1987-11-23 |
Implemented Date: | 1988-10-1 | Abolished Date: | 2008-09-01 |
Superseded Standard.: | GB/T 8411.1-2008 Ceramic and glass insulating materials - Part 1: Definition and classification |
Superseded Date: | 2008-9-1 |
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