Teachnical  specialfections:
   Fiber fineness: 3 ~ 25 μ m
   Purity:more than 99.9 percent content of SiO2
   Performance: Melting point: 1710 ℃
   Crystallization temperature: 700℃ above
   Thermotolerant  performance : 1200 ℃ half hour starts not to change form crisply.
   Thermal coefficient: (mat-like) in the following 200 ℃ <0.03 kcal / m at the degree
                        In 1000 ℃ at 0.2 kcal / m at the degree
   Tensile capacity: 15.4 N
   Tensile strength: normal temperature  > 150Kg/mm2 500 ℃ at the strength reduced by 20%
   Elastic modulus: 96 × 104Kg/mm2
   Dielectric constant: ε = 4.5
Volume Resistance: (for cable)
At room temperature> 1 × 1017 Ω cm
500 ℃ at > 1 × 1010 Ω cm
1000 ℃ at > 1 × 108 Ω cm
   Water tolerance: in the water boiled for three hours without loss
   Acid resistance: 1 NH2SO4 boiled in three hours without loss
   Alkaline resistance: 0.5 NNaOH boiled three hours loss of 0.62 percent