rulesnut Founding Member Joined Feb 28, 2011 Messages 78 Reaction score 0 May 28, 2011 #1 Link to alternate view: http://www.rulesnut.com/stone.jpg
M MadMel Senior Member Joined Apr 23, 2011 Messages 750 Reaction score 0 May 29, 2011 #3 Silicon Carbide?
DrNaka Founding Member Joined Mar 1, 2011 Messages 78 Reaction score 3 May 29, 2011 #4 It is in Japanese Katakana Combination Type 180#-320# It is a coarse Combi stone.
