Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用Meltingpointisabout900℃.Brazeweldingofcopper,steelandcastiron.熔点约900℃。铜、钢、铸铁钎焊用)