含银30% 等同于美标AWS BAg-20,国标BAg30CuZn ,是银、铜、锌合金,熔点稍高,接头有较好韧性,可钎焊铜、铜合金、钢等材料。熔点677-766摄氏度。HAG-30B 含银30% 等同于美标AWS BAg-20,国标BAg30CuZn ,是银、铜、锌合金,熔点稍高,接头有较好韧性,可钎焊铜、铜合金、钢等材料。熔点677-766摄氏度。HAG-30B 含银30% 等同于美标AWS BAg-20,国标BAg30CuZn ,是银、铜、锌合金,熔点稍高,接头有较好韧性,可钎焊铜、铜合金、钢等材料。熔点677-766摄氏度。HAG-30B 含银30% 等同于美标AWS BAg-20,国标BAg30CuZn ,是银、铜、锌合金,熔点稍高,接头有较好韧性,可钎焊铜、铜合金、钢等材料。熔点677-766摄氏度。HAG-30B 含银30% 等同于美标AWS BAg-20,国标BAg30CuZn ,是银、铜、锌合金,熔点稍高,接头有较好韧性,可钎焊铜、铜合金、钢等材料。熔点677-766摄氏度。HAG-30B