supply of pleated filter bagpleated filter bag,pleated filter bag and snap band to suit to bag holding plate hole dia:160 mm for primary fume extraction system 1 & 2 rwf drawing no. 741900310450. note: a) sn ap band fabric: non woven needle felt polyster. b) material test certificate for var ious parameters specified in the drawing shall accompany the supply. c) two numbe rs sample shall be supplied for approval before bulk supply. d) the supplies shall b e guaranteed for quality, workmanship and performance for a period of 18 months from the date of supply or 12 months from the date of fitment whichever is early. any replacement during this period shall be free of cost. as per drg.no. 731900310450 [ w arranty period: 30 months after the date of delivery ] => limited