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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 4830-2015 |
Pressure range and quality of air supply for the industrial process measurement and control instruments 工业自动化仪表 气源压力范围和质量 |
China National Standards Pressure range quality |
 English PDF |
| GB/T 4830-1984 |
Pressure range and quality of air supply for the industrial process measurement and control instruments 工业自动化仪表气源压力范围和质量 |
China National Standards Pressure range quality |
English PDF |
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