Silver Solder To Is 2927/75 Gr. Ba-Cu-Ag-6 Square Cross Section Of 4Mm. Metall Urgical Composition As Follows:- Silver 60 To 62%, Copper 27.5 To 29.5%, Zinc 9 To 11%, Impu Rities 0.15% Maximum. [ Warranty Period: 30 Months After The Date Of Delivery ] ]