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Ni70cr30 ni70cr30 Good Antioxidation Resistance Nichrome Alloy Ni70Cr30 For Porcelain Teeth Related Grade: Ni70Cr30, Nikrothal 70, N7, HAI-NiCr 70, Chromel 70/30, Resistohm 70, Balco,Tophet 30,Cronix ...