Set Of Bolster Springs For 8 Wheeler Tower Car Of Beml Make.1). Helical Spring Outer Wire Dia=36Min., L=4593M M Conforming To 52Cr4Mo2V To Is:3195-92, 415 To 460Bhn After Hardening And Tempering & To Rdso Specification Wd-01-Hls-94 ( Rev.-4) And To Beml Drawing No.901-82029, Item-01, Alt.-4, Qty.- 01 No./ Set.2). Helical Spring Inner Wire Dia =26Min, L=3680Mm. Co Nforming To 60Si7 To Is: 3195-92, 380 To 440Bhn After Hardening And Tempering & To Rdso Specification Wd-01-Hls-94 (Rev.-4) A Nd To Beml Drawing No.901-82029, Item-02, Alt.-4, Qty.- 01 No./ Set. [ Warranty Period: 30 Months After The Date Of Delivery ] ]