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Information × Registration Number 0305U003618, 0105U004154 , R & D reports Title Expert scientific decision about the engineering solutions for planetary-roller-bit of mining holes popup.stage_title Експертний науковий висновок по технічним рішенням планетарно-долотного буріння свердловин Head Kozhevnykov Anatoliy, Registration Date 20-05-2005 Organization National Mining University popup.description2 The decision about the double drilling column, about the drilling devices and about the planetary-roller-bit drilling device are doing. The decision about the packer for the drilling with the double drilling column, about drilling bit, about the drilling water treatment device are doing.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close