Scouring Sandstone

66 x 0.629 = 41.514

0.629

195 23 x 0.002 = 39.046

0.002

180 2 x 0.002 = 36.004

0.002

163 82 x 0.002 = 32.764

0.002

147 68 x 0.002 = 29.536

0.002

144 88 x 0.002 = 28.976

0.002

143 16 x 0.002 = 28.632

0.002

124 50 x 0.002 = 24.9

0.002

123 16 x 0.002 = 24.632

0.002

0 x 0.002 = 0

0.002

x 0.08 = 0

0.08