Electric Heating Tube, tubular heater use material with SUS201,SUS304,SUS316L,SUS321,Incoloy800, Incoloy840 which products used in air fryer, washing machine, water boiler, storage water heater,toaster heater, Which using OCR25AL5 or Ni80Cr20 heating wire, we use the automatic winding machine to wind the heating wire,we can do V shape,U shape and X shape heating tube, quality assurance and improve efficiency.