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