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.
Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges, Specification for cast iron flanges— 24 стр.