... producer of Abrasive & Grinding Tools, green silicon carbide oil stone, black silicon carbide oil stone, brown corundum oil stone ... 1000# 4000# 6000#Alundum carbide sharpening stone, oil stoneIngredients: corundum, carbide silicon, china clay, feldspar and dextrin Shapes: Rectangular, ... stone / sharpening stone, please view our relative catagory Corundum abrasive stone double colors oilstone delicate