BK8-VC (VK8VK)
To equip mining tools: roller cone drill exploration, operational and blast holes in hard and very hard abrasive rocks with factor of a fortress on a scale Protodjakonova up to f = 18.
To equip mining tools: roller cone drill exploration, operational and blast holes in hard and very hard abrasive rocks with factor of a fortress on a scale Protodjakonova up to f = 18.