... in high temperature furnace, ceramics, glass, analysis and test, semiconductor, science research etc. Types: GD( straight)\ U-shape\ W-shape\ ... cannot be fully loaded at once. Otherwise the larger current will be resulted in the damage of heater.5. ... fields of metallurgy, ceramics, glass, machinery, analysis test, semiconductor, science & research and so on. Silicon Carbide heating elements (ISO9001)