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Table 2 (Commonly used material density table)
No Material Density No Material Density
1 Construction Steel 7.85 27 Interleaving Paper 0.9
2 Cast Steel 7.8 28 Fiber Paperboard 1.1~1.4
3 Grey Cast Steel 6.8~7.2 29 Waterproof Paper 1.0~1.1
4 High-Quality Cast Iron 7.0~7.6 30 Felt 0.24~0.38
5 Malleable Cast Iron 7.2~7.4 31 Rubber 1.3~1.8
6 Hard Alloy (Tungsten Alloy)
13.9~14.9 32 Cork 0.25~0.45