Product Description Coil heat exchanger feature a revolutionary locking mechanism for injection molding nozzle applications that allows the clamping band of the heater to be mounted or removed using a standard allen wrench. This eliminates the need for an additional tool while delivering incredible clamping force to the heater band. Product detail Product Name: Coil heat exchanger Material: stainless steel, MgO insulation and resistance wire Product size: can be customized Power and Voltage: 230V, 200Wor as your request Supply Ability Supply Ability: 10000 pcs one month Certificate CE, COC, ISO9001 If you have another question, please feel free to contact us as belowCustom Coil Heater website:http://www.cnheaters.com/heating-element/coil-heater/