| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| MT/T 290-1992 | English | 739 |
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(The nature of the coal mine safety type common electric, automatic telephone. The main performance test methods)
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MT/T 290-1992
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MT/T 290-1992
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