supply of cover water proof , cover water proof to ind/tc/2204(m) of (1) size:4.57 mtrs x 4.57 mtrs,(2) basic materia l cloth duck rip stop cotton 610 gms/sq mtrs olive green water proof to provisional specification no. d msrde/t&gs/87/343,(3)fabrication of covers & other components to specification no.ind/tc/2204(m) ,(4)lasing ropes are to be fixed at each corner with 1.25 mtrs length and 8mm dia made from rope po lypropylene h/l to specs no.is:5175-1992 amds-1 reaffirmed 1997 second revision; with 12 eyelets & 12 lashing ropes. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]