Specification for black bolts, screws and nuts, hexagon and square, with B.S.W. threads, and partly machined bolts, screws and nuts, hexagon and square, with B.S.W. or B.S.F. threads— 22 стр.
Specification for aluminium conductors and aluminium conductors, steel-reinforced for overhead power transmission, Aluminium conductors, steel-reinforced— 16 стр.