B&S
1. On drawings, abbr. for beams and stringers 2. On drawings, abbr. for bell and spigot 3. On drawings, abbr. […]
General
General
B-labeled door
A door carrying a certification from the Underwriters Laboratories, Inc. that it meets the requirements for a class-B door.
General
base metal
The metal to be welded or soldered (as distinguished from filler metal which is deposited during the joining process).