crysral clear tube
1. SiO2>99.9%
2. High temperature to 1600C
3. OD6mm to 100mm
4. Infrared heating element

 Crysral clear tube
1. SiO2>99.9%
2. High temperature to 1600C
3. OD6mm to 100mm
4. Infrared heating element

5. Good transmission for infrared red lights