as for heating coil and
aluminum sheet, which one is better for heating?Both of them have advantage. It depends on the new product type it’s applied. Heating coil: it’s applied in some products with high temperature and large heat release, such as oven and other types.Heating coil has a short lifetime, and
aluminum sheet for heating can be used for a long time. Stainless steel heating tube is embedded into
aluminum sheet for heating, because the heating coil isn’t exposed, it can be used for a long time.Other related question