I mua i te patapatai, tukuna mai nga korero e whai ake nei kia mohio ai matou ki o tino hiahia:
1.Rahi
2.Size kātakí
3.Koeke autō(35-N52(M,H,SH,UH,EH,AH))
4. Whakakikorua (Zn, Ni, Epoxy, etc)
5.Araunga aukume (Axial, Radial, Thickness, etc)
6.Rahi
7. Kei hea, me pehea ranei koe e whakamahi ai i te aukume