Copperzinc铜锌L103Wire&rod丝885-888Cu54ZnRem.Brazingofcopper,bronzeandsteel,subjectedtolowload.钎焊铜、青铜和钢等受力不大工件L104Foil箔890-930Cu57Mn2Co2ZnRem.Brazingofcarbidecuttingtool.钎焊硬质合金刀具)