Supply of O Ring For Vb/Ts. O-Ring Trelleborg Item No. Or4023000 -For Roller Bearing Arrangement Of Vb Train Set Bogies Special Condition : There Will Be Minor Modification In Design Firm Ma Y Be Advised To Collect Final Drawing Before Manufacturing Suitable Packing To Be Done To Prevent Damage During Transit.. Warranty Period: 30 Months After The Date Of Delivery