| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 45439-2025 | English | 359 |
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Technical specification for the application of traceability two-dimensional code on fuel gas cylinders and fuel gas cylinder valves
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GB/T 45439-2025
| Valid |
GB/T 45439-2025
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