GB/T 20509-2023

Copper and copper alloys drawing for contacting materials of electric locomotives

STANDARD published on 23.5.2023

English, Chinese -
electronic design (pdf) (310.80 USD)

The information about the standard:

Designation standards: GB/T 20509-2023
Publication date standards: 23.5.2023
Country: Chinese technical standard
Category: Technical standards GB