supply of sheet acrylic (perspex) transparent 1220mm length x 915mm width x 6 mm thi ck to is:7569/1987.type -a grade -ii. the date of supply of the material should be within 60 days from the date of manufacture. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] smm-d(els) itarsi, wcr