GOST 33006.2-2014 Petroleum and natural gas industries. Rotary drilling equipment. Part 2. Inspection and classification of used drill stem elements. General technical requirements and control methods
GOST ISO 9000-2011 Quality management systems. Fundamentals and vocabulary
GOST 33006.2-2014 history
2014GOST 33006.2-2014 Petroleum and natural gas industries. Rotary drilling equipment. Part 2. Inspection and classification of used drill stem elements. General technical requirements and control methods