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ܶKg/m3 |
1750-1860 |
1860-1920 |
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70-90 |
120 |
MPa |
60-70 |
80-90 |
MPa |
24-28 |
31.5-40 |
MPa |
15-22 |
31-50 |
SʹÜضȡ |
170̎180 |
200 |
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