tender for pleated filter bag and snap band to suit to bag holding plate holedia:160mm for primary fume extraction system 1 & 2 rwf drawing no. 731900310450.note: a) snap band fabric: non woven needle felt polyster. b) material testcertificate for various parameters specified in the drawing shall accompany thesupply. c) two numbers sample shall be supplied for approval before bulk supply. d)the supplies shall be guaranteed for quality, workmanship and performance for aperiod of 18 months from the date of supply or 12 months from the date of fitmentwhichever is early. any replacement during this period shall be free of cost.