supply of fire retardant curtain fabric for all ac coaches except ac first class and executive chair car , fire retardant curtain fabric for all ac coaches except ac first class and executive chair car of width 122 0mm, mass of fabric shall be 250 plus or minus 20 gm/sq.meter and the shade and colour should conform to grade no.pp a57 of m/s. indian rayon and industries ltd. the firm shall submit samples of above said design/ pattern and colour/shad e in size 300 x 300 mm for approval. to rdso spec. no. c-9911 (rev.3 of feb.05, with amendment no. 4 of apr.15 and corrige ndum 1 of may15). [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]