RS80 Rotosound Traditional Instruments string set mandolin phosphor bronze M400 Martin string set mandolin M465 Martin string set mandolin monel wound M-158 Galli string set mandolin G-1430 Galli string set mandolin V-039 Galli string set mandolin SMF-500 Galli Suprema string set mandolin SMF-600 Galli Suprema string set mandolin L-880L La Bella Acoustic Folk string set mandolin TH-353-D Thomastik classic nylette set TH-154 Thomastik Präzision string set for mandolin TH-154S Thomastik Präzision string set for mandolin TH-154W Thomastik Präzision string set for mandolin