supply of synthetic rubber neoprene or nitrite bonded cork composition sheet grade rc - 50/b fine grannals, size: 600 mm x 900 mm x 3.2 mm thick to is: 4253/80 part-ii. the sheet shall be duly stamped by mfrs name , month, year of manufacturing in indeliable ink & suitably packed in transparent polythene bags duly sprinkled with french chalk powder individually.synthetic rubber neoprene or nitrite bonded cork composition sheet grade rc - 50/b fine grannals, size: 600 mm x 900 mm x 3.2 mm thick to is: 4253/80 part-ii. the sheet shall be duly stamped by mfrs name , month, year of manufacturing in indeliable ink & suitably packed in transparent polythene bags duly sprinkled with french chalk powder individually.,synthetic rubber neoprene or nitrite bonded cork composition sheet grade rc - 50/b fine grannals, size: 600 mm x 900 mm x 3.2 mm thick to is: 4253/80 part-ii. the sheet shall be duly stamped by mfrs name , month, year of manufacturing in indeliable ink & s uitably packed in transparent polythene bags duly sprinkled with french chalk powder individually. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]