Ideal for total 7 building materials:

1(Hard wood): 8.9~95.7%

2(Soft wood): 7.1~80.0%

3(Cement): 1.0~2.5%

4(Anhydrite plane): 0.0~3.3%

5(Cement mortar): 0.7~3.8%

6(Lime mortar): 0.58~7.4%

7(Bricks): 0.0~23.4%