GB/T 3639-2021

Seamless cold-drawn or cold-rolled steel tubes for precision applications

NORMA vydaná dňa 20.8.2021

Anglicky a čínsky -
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The information about the standard:

Designation standards: GB/T 3639-2021
Publication date standards: 20.8.2021
Country: Chinese technical standard
Kategória: Technické normy GB