... strip Copper Nickel Alloy Wire:We are the greatest professional manufacturers of resistance heating alloys ... in China, specializing in Ferro-Chrome Alloys (Ferritic Alloys), Nickel-Chrome Alloys (Nichrome alloys), Copper Nickel AlloysConstantan Alloys. ... heating elements. 2) Product Specifications: Ferro-Chrome Alloys (Ferritic Alloys): OCr21AL4, OCr21AL6, OCr25AL5, OCr23AL5, 1Cr13AL4, ...