Tender For supply of gasket for btpgln tank wagons (eduction valve gasket) thickness 3.2 mm, o.d. 1 01.7 mm, i.d. 82.4 mm. specifications as per rdso drg. no. wcs-7801-s-62. material as per is:2712 /1998 grade-w/2 & 0/2. compressed asbestos fiber jointing (graphite). make- ferolite, hilite, th ermoseal, champion or similiar. [ warranty period: 30 months after the date of delivery ]