Tenders for Supply of Upper Housing Assembly For Automatic Twist Lock Of Blc Wagon Drawing No. M/S Holland Design Automatic Twist Lock To Part No.. 71474 Warranty / Guarantee : The Supplier Should Confirm A Warranty / Guarantee Of A Minimum 48 Months From The Date Of Manufacture Or 42 Months From Date Of Fitment, Whichever Is Earlier As Per Rdso Guidelines For Multisourcing Of Atl Vide Contr - 01 - Msg - Atl - 2011 Of Nov.2011.