BRAZING ALLOYS

摘要

1532879 Brazing alloys SHEFFIELD SMELTING CO Ltd 20 Sept 1977 [24 Sept 1976] 39856/76 Heading C7A Brazing alloy consists in wt. per cent of Ag 25-39, Cu 27-45, Zn 27-33, Sn 0À1-5.