supply of synthetic rubber neoprine or nitrite bonded cork composition sheet grade rc-70-c fine granules; size 900 mm +/- 15 mm x 600 mm +/- 10mm x 12 mm thick to is 4253 part ii of 1980. the sheet shall be duly st ed with mfg. name & date of mfr.in indeligible ink and suitabally packed in transparent polythene bags duly sprinkled with french chalk powder. , synthetic rubber neoprine or nitrite bonded cork composition sheet grade rc-70-c fine g ranules; size 900 mm +/- 15 mm x 600 mm +/- 10mm x 12 mm thick to is 4253 part ii of 1980. the sh eet shall be duly stamped with mfg. name & date of mfr.in indeligible ink and suitabally packed in trans parent polythene bags duly sprinkled with french chalk powder. [ warranty period: 30 months after t he date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]