Product Description 230v Cartridge Heater 30mm 220v Cartridge Heater Resistor Rod Cartridge heater is a piece of equipment,made of MgO powder or MgO tube, ceramic cap,resistance wire(NiCr2080), high temperature leads and seamless stainless steel sheath(SS304, 321, 316, Incoloy800, 840). Usually in tube form, it is widely used in heating applications by way of insertion into…