THIS TYPE OF ELECTRIC FURNACE ADOPTS THICK PURE COPPER WIRE TO OVERHEATING AND SPONTANEOUS COMBUSTION AND HAS A LONG SERVICE LIFE. IT HAS 5 TEMPERATURE ADJUSTMENT POSITIONS 200-1000°C AND CAN ADJUST THE HEAT ACCORDING TO DIFFERENT NEEDS. THIS ELECTRIC FURNACE IS ENVIRONMENTALLY FRIENDLY AND RADIATION-FREE SAFE AND SECURE TO USE WITH A COOLING HOLE AT THE BOTTOM GOOD HEAT DISSIPATION EFFECTIVELY HIGH TEMPERATURE DAMAGE TO THE RESULTING IN SPONTANEOUS COMBUSTION AND FIRE.