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.
The chemical name for strontium is 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"
John Cena sr.
Sr? What's that? . . -
8 sr of sf
SR Z class was created in 1929.