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�˚⣺1778 �l(f��)���r�g��2017-03-31 15:30 �P(gu��n)�I�~��늽����� �a(ch��n)Ʒ��̖��cg-2 ��(y��ng)���I(l��ng)��ˮ̎�� �a(ch��n)Ʒ�r��1000 ���˽����a(ch��n)ƷԔ�飬Ո |
| Ҏ(gu��)������ 20-30mm |
| �ѷe�ܶ� 1.1-1.2g/cm3 |
| ��϶�� 60% |
| �ȱ���e 1.2 m2/g |
| ���폊�� 650kg/cm2 |
| ��ĥ�Ը� �ߜ�?z��)��Y(ji��)���� |
| �F̼���� |
