supply of swing door bolt eye, door hinge for swing door bcna wagons and door hinge (flap door) for bcna, bcnahs.swing door bolt eye, door hinge for swing door bcna wagons and door hinge (flap door) for bcna, bcnahs.,swing door bolt eye. matl. spec.: as per drg. drg. no. rdso drg. no. wd-90030-s-66, item-8, a lt. 8. [ warranty period: 30 months after the date of delivery ] , door hinge for swing door bcna wagons as per drg. no.wd-90030-s-66 alt-9 item no. 04 [ warranty period: 30 months after the date of delivery ] , door hinge (flap door) for bcna, bcnahs. specification : as per drawing. rdsos drg. no - wd - 90030 - s - 66, item no - 16. [ warranty period: 30 months after the date of delivery ]