|
|
Lining powered roof chocks
|
Heading machines having cutter
|
Plough installations. Basic parameters and dimensions. General technical requirements
|
Plough installations. Test methods
|
Anchor supports. General pecifications
|
Metal frame yield supports. Arch support. General specifications
|
Pliable metal frame fasteners. Arch bracing. General technical conditions
|
Mining and tunneling equipment. Timbering, mechanized. Hydraulic control systems. Safety requirements and methods of testing
|
System of product-quality indices. Rock destruction tool. Nomenclature of indices
|
|
Pit single props. General technical requirements
|
