Nkewa nke ọla kọpa Alloys: Site Alloy System 1. Unalloyed ọla kọpa: Unalloyed ọla kọpa na-agụnye elu-ọcha ọla kọpa, siri ike ọla kọpa, deoxidized ọla kọpa, oxygen-free ọla kọpa, wdg N'ozuzu, dị ọcha ọla kọpa na-akpọ red ọla kọpa.2. Ndị ọzọ ọla kọpa alloys bụ nke alloy ọla kọpa.Na obodo m na Russia,...
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