Ceramic heater, alumina heater, MCH Ceramic Heating Plate (MCH) 1. Configuration. Heating plate with single insulator. ... .2. Some appliances. The insulating material is alumina ceramic usually, but others are possible, such as ceramic, glass, mica and so on. It ... -160R70L10W220V70101.25160±10%both sides3000220V250TC-160R70L07W220V7071.25160±10%both sides3000220V250 Ceramic Heating Plate(MCH)