Brown coals, hard coals and anthracites. Methods for determination of beryllium, boron, manganese, barium, chromium, nickel, cobalt, lead, gallium, vanadium, copper, zinc, molybdenum, yttrium and lanthanum
Petroleum and natural gas industries. Drilling and production equipment. Part 3. Running tools, pulling tools and kick-over tools and latches for side-pocket mandrels. General technical requirements
