Tenders for Supply of Modified Stopper Pin For Wap 7 Locos. Modified Stopper Pin For Wap 7 Locos For Brake Hangers Nos. 3, 4, 7, 8, 9, 10, 15, 16, 17, 18, 21 & 2 2 As Per Drg. No. C/Els/Lgd/Bogie/4/128 Or Latest If Any Sample Should Be Approved Before Bulk Production Warranty Period: 30 Months After The Date Of Delivery