Applications by different abrasive:
1) Aluminium oxide, symbol: A Suitable for iron, mid steel, welding rods, cost iron aluminium, non-ferrous metals and wood.
2) Silicon carbide (disc in black color ), symbol: C Suitable for marbles, stones, building materials, hand materials, glass.
3) Zirconium, symbol: Z
4) T27/T29 is available. Suitable for heavy deburring and finishing on metals. High performance. These discs do not contain metal iron and/or iron compounds.