An pagkakaiba han mga rebisyon han "Tumbaga"
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Bagis 7:
==Alloy==
{{See also|Listahan san copper alloys}}
Daramo an alloy san tumbaga o copper, ngan daramo liwat an pinaggagamitan. ''Brass'' an alloy
Sayo an importante na sangkap an copper sa alahas kaupod an ''silver'' ngan bulawan. An ''carat solder'' na may'ada copper ginagamit sa pagtagaalahas pagliwat san kulay, katig'a ngan ''melting point'' san alloy.<ref name=goldalloys>{{cite web|url = http://www.utilisegold.com/jewellery_technology/colours/colour_alloys/|accessdate = 2009-06-06|title = Gold Jewellery Alloys|publisher = World Gold Council}}</ref>
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