lsj 225 & 242 joists 1954
i have a plan for a building constructed in 1954 that shows lsj 225 & lsj 242 joists. i am unable to find them listed in the sji 60-year manual. is any one familair with this type o f joists?
the sji sent me some information today. the joist appear to have been made by bethlehem pratt co.
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发表于 2009-9-10 12:00:07
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