· 西格马原创发明了二硼化锆复合陶瓷传感器、二硼化锆复合陶瓷发热体、超高温电炉为超高温行业的发展奠定了发展的基础，一个稳定的、环保的、绿色的超高温温场的形成，为超高温行业材料性能的检测提供基础保证。
· Sigma original invention zirconium diboride composite ceramic sensor, zirconium diboride composite ceramic heating element for the development of ultra-high temperature, ultra-high temperature furnace industry has laid a foundation for the development. A stable, environmentally friendly, ultra gentle green forming the field and provide basic guarantee for the detection of ultra-high temperature performance material industry.

· SIGMA超高温的定义:在氧化气氛条件下，1800℃以上的温场称为超高温温场，能够长期接触式测定1800℃以上的温场的温度传感器称为超高温传感器，能够在1800℃以上长期使用的发热元件称为超高温发热元件，能够在1800℃以上长期使用的的箱式电阻炉称为超高温箱式电阻炉。
· SIGMA Ultra-high temperature definition: in an oxidizing atmosphere conditions, above 1800 ℃ ultra-high temperature field called field gentle. Long-term contact measuring temperatures above 1800 ℃ temperature field sensor is called ultra-high temperature sensor. Long-term use of heating element above 1800 ℃ is called ultra-high temperature heating element. It is possible above 1800 ℃ long-term use of the box-type resistance furnace known as ultra-high temperature box resistance furnace.