GB/T 41163-2021

Specification for process design of enhancing coal seam permeability by water jet in coalmine

NORM herausgegeben am 31.12.2021

English, Chinesisch -
Elektronische PDF (255.30 EUR)

The information about the standard:

Designation standards: GB/T 41163-2021
Publication date standards: 31.12.2021
Country: Chinese technical standard
Kategorie: Technische Normen GB