Hello,
I am seeking information on three beam sizes.
RSJ 18 x 7 1/2 x 75#
RSJ 20 x 7 1/2 x 89#
RSJ 24 x 7 1/2 x 95#
They come from a set of drawing of an offshore platform designed in England around 1959. If you have information on these could you please site the source?
Thanks,
Mike...