Is the heating plate copper better or aluminum better？

It must be copper. The properties of the two metals in physical and chemical aspects determine that copper heaters are better than aluminum heaters. Copper is not easy to oxidize, not easy to corrode, and is durable. It is used in clothing stores for a long time and high frequency. The heater's garment ironing machine, aluminum heater, is easy to corrode and oxidize, it will rot after a long time, produce more scale, and consume electricity.