Indeed It can be a different mechanical approach transpiring. Sandpaper or abrasive sheets remove materials by a mechanism identified as "two-physique abrasion" although free grit eliminates materials with the mechanism named "3-physique abrasion. Typically they will have leftover tiles that don't match what They can be now getting, stone is http://reidxueh532.lucialpiazzale.com/10-fundamentals-about-silicon-carbide-you-didn-t-learn-in-school