... ,OCr23Al5,1Cr13Al4,OCr21Al6Nb,Cr15Ni60,Cr20Ni80,Cr30Ni70,Cr20Ni30 and CuNi Resistance Wire and Ribbon:We are the greatest professional manufacturers of ... Nickel Alloys (Constantan Alloys) In the form of round, ribbon/strip:Round Wire: Dia 0.04mm-8.0mmRibbon/strip: ... with the chemical analysis department, the physical testing department and the quality control department, we operate an all-round ...