Ihe: carbon nchara
Ọkwa: 4/8/10/12
Ọgwụgwọ ihu: agba okike, oxide ojii, ikpo ọkụ ọkụ, kpaliri ọkụ, dacromet, wdg.
Ọkọlọtọ: GB, DIN, ISO, wdg.
Readdị eri: eri zuru ezu, ọkara eri
