The unit is consisted of a stainless steel heat coil made of stainless steel sheath bonded with stainless steel fins , an electric driven fan both encase in an IP44 / IP56 stainless steel enclosure .
该加热器包括一个不锈钢护套和不锈钢散热片构成的不锈钢热线圈以及一个电动风机，并具有一个防护等级为IP44/IP56不锈钢外壳中。
ip56