Right and left coupling
(Pipe fitting) | a coupling the opposite ends of which are tapped for a right-handed screw and a left-handed screw, respectivelly. |
See also: Right
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
(Pipe fitting) | a coupling the opposite ends of which are tapped for a right-handed screw and a left-handed screw, respectivelly. |
See also: Right