... : heating rapidly,heating equality CE and Rosh high density cartridge heater Cartridge heating element means the lead wire is at the ... ,easy to operateIt could used for heating gas,liquid,oil,mold and so on.Its power could reach 2-5 times ... compared with common cartridge heaterIt mainly used for heating metal mold, Vacuum equipments,bolt heating element,high-temperature equipmentRefer voltage:550V ...