Kester 93-6337-9756 Solder Wire, Rosin Core, Leaded, Sn63Pb37, 3.3%, 0.010′
(Applies only if this core flux is combined with a lead-free alloy). Alloy: Sn63Pb37. Compatible leaded and leaded-free alloy. 285 Flux-cored wire. Industry standard RMA cored wire. Photos are greatly appreciated!