Supply Of I Beam Assy (hw-680.02) -- Item As Per Drg. 31204231200 Rev.00 With Matl As Per Cbom 31204231200 Rev.00 , I Beam Assembly (hw-680.04) -- Item As Per Drg. 31204231400 Rev.00 With Matl As Per Cbom 31204231400 Rev.00 , I Beam Assembly (hw- 680.05) (EXPIRED)