Akwụkwọ aja
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Flint/Aluminium oxide/Black silicon carbide
Obere (60)
Kacha mma maka oke ihe.Mwepụ & wepụ agba ochie.
Ọkara (80-180)
Kachasị mma maka ịcha agba ochie, ịkpụzi ahụ, ihe ndochi & primer.
Emecha (220-600)
Kacha mma maka primers, sealers & ikpeazụ sanding tupu agba.
Nkuku (800-3000)
Kachasị mma maka aja ikpeazụ mgbe agba & uwe elu tupu ịkwa akwa.
