HighQuality Grinding Steel Ball for Grinding Appliions
WEBJul 25, 2017 · The grinding steel balls are uniformly spherical in shape and no appreciable variation between any two balls of same size. 3. The grinding steel balls must comply to standard required alloy steel composition. 4. Surface smoothness and free from defects such as pits, soft sports, cuts, laps and out of round. 5.