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International Standard Category: Non-ferrous metal pipes |
Category No.: | 23.040.15 | Valid Status: | superseded |
Issued Organization: | China State Bureau of Standards | Issued Date: | 1988-02-29 |
Implemented Date: | 1989-2-1 | Abolished Date: | 2008-04-01 |
Superseded Standard.: | GB/T 8894-2007 Copper and copper-alloy waveguide tube |
Superseded Date: | 2008-4-1 |
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