supply of double sealed non openable window glass size 1560 x 860 x 26 mm (both side 6 mm toughened glass with 14 mm gap filled with argon crypton gas) for train-18 coaches. spec.: icf drg. no. train 18/mc/ac-5-4-001. for vande bharatdouble sealed non openable window glass size 1560 x 860 x 26 mm (both side 6 mm toughened glass with 14 mm gap filled with argon crypton gas) for train-18 coaches. spec.: icf drg. no. train 18/mc/ac-5-4-001. for vande bharat,double sealed non openable window glass size 1560 x 860 x 26 mm (both side 6 m m toughened glass with 14 mm gap filled with argon crypton gas) for train-18 coaches. spe c.: icf drg. no. train 18/mc/ac-5-4-001. for vande bharat [ warranty period: 30 months after the date of delivery ] ]