... 4,Low MeltingSolder 2012 hot sellingRosin Plux PEN for DIY Solar cells Panels, for electrical soldering,soldering pen,Plux pen Feature: Designs ... reoxidization through blocking the air after promptly removing oxide film from parental metal and covering the surface.Directions: ... Contents: 10ml 2012 hot sellingRosin Flux PEN for DIY Solar cells Panels, for electrical soldering,soldering pen,Plux pen