SDKR-1（Soluble ceramic fiber）:
The content of MgO：30%-40%
SiO2： 57-67%
Al2O3: <2%
Hardness: 5
Shot content: 3%
Density: 270KG/M3
Strengthen: 1400-1600MPa
Diameter: 3-5um
Using temperature: 1000 degree centigrade
SDTR-1Z：
Al2O3: >44%
SiO2：56%
Hardness: 6
Shot content: 3%
Density: 260KG/M3
Strengthen: 1400-1600MPa
Diameter: 3-5um
Using temperature: 1000 dgree centigrade
