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Made of good asbestos Fibre rubber with steel wire inserted and compound heating and compression molding it (can be coated with graphite on the surface).
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GB/T539-1995 | ||||||
Item |
KJXB450 |
KJXB350 |
KJXB250 |
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sile strength MPa |
21.0 |
16.0 |
11.0 |
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Aging Coefficient |
0.9 |
|||||
Burning Loss % |
27 |
29 |
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Density g/cm3 |
1.6 - 2.0 |
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Compressibility % |
12 5 |
|||||
Rebound degree |
42 |
40 |
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Pliability |
No Crack |
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Stress-relaxation |
50 |
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Steam Airtightness |
with the temperature of 440-450 and the pressure of 13-14MPa,Keep for 30 min without puncture |
with the temperature of 340-350 and the pressure of 9-10MPa,Keep for 30 min without puncture |
with the temperature of 440-450 and the pressure of 7-8MPa,Keep for 30 min without puncture |