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| International Standard Category: Thermal and sound insulating materials |
GB/T 25997-2010 Polyisocyanurate products for thermal insulation
绝热用聚异氰脲酸酯制品;
| Category No.: | 91.100.60 | Valid Status: | superseded |
| Issued Organization: | AQSIQ | Issued Date: | 2011-1-10 |
| Implemented Date: | 2011-10-1 | Abolished Date: | 2021-04-01 |
| Superseded Standard.: | GB/T 25997-2020 Polyisocyanurate( PIR ) products for thermal insulation |
Superseded Date: | 2021-4-1 |
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