| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 39542.3-2020 | English | 114 |
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Days<=3
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Mechanical pencils for technical drawings - Part 3: Black leads - Bending strengths of HB leads
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GB/T 39542.3-2020
| Valid |
GB/T 39542.3-2020
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