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Yanzhistone mold polishing stones is excellent for removing mold machining marks and spark erosion grains for preparing the surface for final polishing. Mould and Die Polishing Stone Sets are a great way to sample different types, and grits of congress polishing stones. These stones are excellent quality and designed for mould and die polishing.
20pcs in one box
Made in Korea
2：The main features of Yanzhistone mold polishing stones
-High resistant and lifetime
-Engineering hydraulic cylinder
-Cylinder oil field pump
-Coal mine hydraulic prop, the engine liner
-Military guns and other deep hole boring and processing areas.
-For polishing hard steel,such as high speed steel,high carbon steel,chilled steel,alloy steel and other mould steel.