Iron-Chrome-Aluminum series, Nickel-Chrome Such as Cr20Ni80, Cr15Ni60, Cr30Ni70, Cr20Ni35 and Ocr21Al4, Ocr25Al5, 0Cr23Al5, Ocr21A16, ... and American countries. high and stable resistance, corrosion resistance, surface oxidation resistance is good, a better under high temperature ... furnace, metallurgy, household appliances, machinery manufacturing, heating element and resistor varistor other material.