Thickness mm 0.12 ± 0.012 Width mm 30 Volatilization ≤0.8 Scone content g/m² 16 ± 1 Mica content g/m² 91 ± 3 Glass content g/m² 32 ± 1 Tensile strength kgf/15mm ≥16 Total substance g/m² 139 ± 5 The temperature rating is no less than 850°C × 90min 1.2kv