..which include crevices, common plumbing flux and whilst I have had luck with most solders, four% silver bearing solder is stronger In the end...kinda pricey tho... I had Harris solder on hand at enough time so no major deal for me but high-priced if you do not want the energy https://autotransmissionrepairnea97417.blog5star.com/27648648/the-definitive-guide-to-types-of-solder-to-use-on-aluminum-radiator