L308Wire&rod丝779-780Ag72CuRem.Brazingofcopperandnickelundervacuumorreducingprotectiveatmosphere.铜和镍的真空或还原保护气氛钎焊BAg-8L312Wire&rod丝595-605.Zn.CdBrazingofcopper,copperalloys,steelandstainlesssteeletc.钎焊铜及铜合金、钢及不锈钢等)