The tubular electric heating element (electric heating pipe) is made of metal tube (including stainless steel and copper tube), along the central axis of the tube, the spiral electric alloy wire (nickel chrome, iron chrome alloy) are uniformly distributed. The gap fills compacted magnesium oxide with good insulation thermal conductivity performance, the nozzle ends sealed with silicone, this metal armored heating elements can heat the air, metal molds and a variety of liquids.
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