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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| DL/T 303-2014 |
Ultrasonic inspection for the trut porcelain insulator and borcelain bushing used in the grid system 电网在役支柱绝缘子及瓷套超声波检验技术导则 |
China Electricity & Power
Standards borcelain |
 English PDF |
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