what is the technical name and specifications of the grinding wheel?

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Mohamed Atrees

That is used for grinding the solid samples in rod mill or ball mill

Richard Symes

88A probably refers to pink fused alumina.

The V probably means vitreous bonding.

I'm not sure about the rest of the code.

Pirsab Rasulsab Attar

Mohammad Bayat

88A may refers to Pink alumina

802 Grit size (very fine)

I- Hardness

8- Structure

V- Vitrified bond

43- Bond designation