armco steel joists
does anyone have load tables or product data for armco open steel joists? armco (now called ak steel) fabricated open web steel joists in the 1950's and 1960's using cold-formed steel top and bottom chords with rods for web members (pratt-type truss). i have done a google search and contacted sji with no firm results... so far.
IP卡
狗仔卡
发表于 2009-9-7 12:51:40
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡