Detailed Product Description Metal Cutting Wheels 's Material (the reinforced cutting and grinding discs are made of these materials):1) Aluminium oxide: A 2) White aluminium oxide: WA 3) Single crystal aluminium: SA 4) Zirconia aluminium: ZA 5) Black silicon carbide: C6) Green silicon carbide: GC Total types of products (4 types of cutting and grinding discs in the structure):1) T41 flat cut off ...