Soil drilling by vibration
Gumenskii, B.M.
Soil drilling by vibration - - New York Consultants Bureau, 1961 - 80 p. 27.5 cm - .
0
Drilling muds
550.82 Gum
Soil drilling by vibration - - New York Consultants Bureau, 1961 - 80 p. 27.5 cm - .
0
Drilling muds
550.82 Gum