Make the U type and W type heating tube to be
series-wound and shunt-wound to meet the rated voltage requirement.
The fixed housing adopt the stainless steel or high quality
hot zincification board to resist high temperature and corrosive.
Matching the heat fuse and temperature controller to protect doubly
the heating pipe of the air conditioner and keep safe.
Adopting the high temperature silicone rubber wire and imported
connecting terminal to make the electric connection more fixed and
reliable.