成分ZrO2,SiO2,AL2O3,CoO,MnO2,Fe2O3,Cuo,TiO2***射率0.9以上***傳導率0.70kcal/m.h.℃***膨脹率5.3x10-6絕緣***阻3000MΩ-cm(20℃)1150MΩ-cm(100℃)5MΩ(600℃)楊氏模量1.04x106kg/cm2曲***強度1.06x103kg/cm2***高耐***度1,000℃照射長(mm)全長(mm)***壓(V)***功率(W)******體表面溫度(爐內)B型,BL型300x60400220/380800500600400B型,BL型400x60500220/3801,000500800400B型,BL型500x60600220/3801,2005001,000400B型,BL型600x60700220/3801,5005001,200400B型,BL型700x60800220/3801,7005001,500400)