BWWN/31/9
"Specifications BS, 1929"
Description
Standards specifications:
"BSS for Keys & keyways & Coned Shaft ends"
"BSS for Wrought Iron for use in Railway Rolling Stock"
"BSS for Splines & Serrations"
"BSS for Solid & Split Taper Pins"
Date
1929
Reference code
BWWN/31/9
Extent & medium
Booklets