All the materials inside the motor are made of high-grade fireproof and high-temperature resistant materials. In particular, high-temperature 180-degree enameled copper round wires, high-temperature lead-out wires, high-temperature sleeves, F-class insulated binding wires are used (when binding the wires, the welding part uses double sleeves (generally, companies only use one layer of ordinary sleeves), insulating paper, cold-rolled steel sheets, and protective insulating varnish adopts advanced vacuum impregnation to ensure the insulation capacity of the motor.