The following prompted me to search for information and further experiments. 1. Assortment.In my work, I used to use 4 types of grain size “skins”: 40, 80, 100 and 150.For 3 years of operating my grinder, I have never met any 40 and 150 grit bands ready for it. Perhaps they exist in nature. 2. Price.One finished tape for a […]

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