supply of mattress single bed (rubberised coir) di [mattress single bed (rubberised coir) dimensions: 1905x914 mm, total thickness 6 inch, four layers - inner core : cross section top- bottom: 1) 28 d 20 mm pu foam 2) 25 mm 80 d rebonded foam 3) 80 mm 70 d rc block 4 ) 25 mm 80 d rebonded foarm. top: 250 gsm knitted fabric is quilted with 18 d 7 mm peeled foam 3 nos. together with 18 gm/sq m non-woven fabirc as backing cloth. the corner of the mattress round shaped and the quilted panels to be stitched in the taped edge machine. bottom : 250 gsm knitted fabric. other description : bed mattresses must as per is 13489 2000 with inner cushioning material as sandwiched rubberised coir sheets as per is 8391 part 3 , 2018 . the resistance to ageing and durability test for pu foam shall meet the requirement of is 7933. preferred brands : peps hypnos, cirrus, rubco or similar.] , mattress single bed (rubberised coir) dimensions: 1905x914 mm, total thickness 6 inch, four layers - inner core : cr oss section top- bottom: 1) 28 d 20 mm pu foam 2) 25 mm 80 d rebonded foam 3) 80 mm 70 d rc block 4 ) 25 mm 80 d rebonde d foarm. top: 250 gsm knitted fabric is quilted with 18 d 7 mm peeled foam 3 nos. together with 18 gm/sq m non-woven fabirc as backing cloth. the corner of the mattress round shaped and the quilted panels to be stitched in the taped edge machine. bottom : 250 gsm knitted fabric. other description : bed mattresses must as per is 13489 2000 with inner cushioning material as sandwiche d rubberised coir sheets as per is 8391 part 3 , 2018 . the resistance to ageing and durability test for pu foam shall meet the requi rement of is 7933. preferred brands : peps hypnos, cirrus, rubco or similar. [ warranty period: 30 months after the date of deliv ery ] ]