DS EN 3373-010:2009 Aerospace Series - Terminal Lugs And In-Line Splices For Crimping On Electric Conductors - Part 010: Terminal Lugs, Ring Shaped, Tin Plated, For Crimping On Copper Conductors, Temperature Up To 150 Degrees C For Metric And Inch Stud Series - Product Standard Describes the characteristics of tin plated copper ring shaped terminals for crimping on copper conductors.