SR Z class was created in 1929.
bokum
Bi pipe is a black iron pipe.
bore of the pipe is the internal diameter of pipe but the nominal diameter of pipe is the dia of a circle which is draw through a point which is situates at exactly half of the thickness of pipe or we can say that (outer dia of pipe- thickness of pipe )=nominal bore of pipe.
Pipe bore is the actual minimum inside diameter of a pipe, which is not necessarily the nominal pipe size.
Elbow is a fitting used to change pipe direction, 45 degrees in this case, LR is referred as "long Radius" ( normally most pipes, unless you ask for SR, short radius). Butt weld refers to welding 2 ends from two separate fittings or pipe. Both ends are beveled (30 degrees is tapered from inside pipe diameter to outside pipe diameter on pipe/fitting connections)
The winner of the one million Publishers Clearing House on November 30, 2011 was Leroy Faulks Sr. He was a retired pipe cleaner.
Johns Sr is the plural of John Sr
"Sr's"
The cast of Sr. Feliz E Sr. Contente - 1975 includes: Nicolau Breyner as Sr. Feliz
Sr.
Short Radius 90 degree elbows are the same as pipe size.... Long Radius 90's are pipe size times 1.5.... so a 6" (SR) elbow is 6"... a 6" (LR) elbow would be 9"
The chemical name for strontium is Sr.
John Cena sr.
Sr? What's that? . . -
8 sr of sf
SR Z class was created in 1929.