the wire is well protected not to be hurt when it is processed and winded, the resistance is uniform and the performance is stable. Under the condition of high temperature and load requirement, the physical and chemical properties of ceramics are harmless to the heater. the material of our heating elements are of iron-chromium-aluminium alloys or nickel-chromium alloys . We can wind any size as your requirement. our products, matched to the equipment of manufacturers such as north glass technology co., ltd.,   landglass technology co., ltd. ,  etc., have been sold to many countries and regions in the world.