supply of bus type window assembly with sliding shutterbus type window assembly with sliding shutter,bus type window assembly with sliding shutter for non-ac coaches glass set as per drg no. judw/mech/19-695. item no.3 (sliding glass shutter 5 mm toughened glass lh), item no. 4 (slidin g glass shutter 5 mm toughened glass rh) & item no. 5 (fixed glass shutter 5 mm toughened frosted glass) is required only, material specification as per drg. is:2553. [ warranty period: 30 months afte r the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]