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Standard Insuued on: 1987-02 |
Category No.: | GB | Valid Status: | superseded |
Issued Organization: | Issued Date: | 1987-02-03 | |
Implemented Date: | 1988-3-1 | Abolished Date: | |
Superseded Standard.: | GB/T 7320.2-2000 Refactory materials-Determination of thrmal expansion-Telescope method GB/T 7320.1-2000 Refractory materials-Determination of thermal expansion-Push rod method |
Superseded Date: | 2001-6-1 |
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