... samples 5.GB/T1234-1995 standard Nichrome Resistance Strip and Ribbons 1. Main Type:Fe-Cr-Al Series: 1Cr13Al4, 0Cr21Al4, 0Cr19Al3 ... , warming appliance, electric warmer, etcIndustrial Series: can be used for water heater, industrial electric furance, far infrared ray device, boiler, heating ...