GB/T 39024-2020

Black leads for wood-cased pencils—Classification and diameters

STANDARD published on 21.7.2020

English, Chinese -
electronic design (pdf) (136.80 USD)

The information about the standard:

Designation standards: GB/T 39024-2020
Publication date standards: 21.7.2020
Country: Chinese technical standard
Category: Technical standards GB