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  4. Standard "GB/T 4389-2026"
Standard GB/T 4389-2026 28.9.2026 preview

GB/T 4389-2026

Double-headed open-ended wrenches, double-headed box wrenches and combination wrenches—Maximum widths of heads

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STANDARD published on 28.9.2026


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The information about the standard:

Designation standards: GB/T 4389-2026
Note: Execute Date: april 2027
Publication date standards: 28.9.2026
SKU: NS-1287605
Country: Chinese technical standard
Category: Technical standards GB

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Hand-operated tools

Latest update: 2026-10-29 (Number of items: 2 208 109)
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