Because sometimes, in the global machinery of trade, everything stops for one reason: a clean Excel sheet.
010101 Abrasive sheet, water proof, assorted grits, pack of 50 Pack 01 Abrasives 010102 Abrasive cloth roll, aluminum oxide, 50m roll Roll 01 Abrasives 010201 Grinding wheel, straight, aluminum oxide, 150x20x20mm Pc 01 Abrasives
Identify the specific product group within that category. Digits 4-5: Specify the sub-group.
for a particular category (e.g., safety gear or engine parts).