GB/T 39338-2020

Technical requirements of solid-filling in fully-mechanized coal mining

NORMA vydána dne 19.11.2020

Anglicky a čínsky -
Elektronické PDF (4700.20 CZK)

The information about the standard:

Designation standards: GB/T 39338-2020
Publication date standards: 19.11.2020
Country: Chinese technical standard
Kategorie: Technické normy GB