Teyp a ɛyɛ hyew a ɛkɔ soro no wɔ su ahorow a edidi so yi:
1. Ɛnyɛ nea ɛyɛ nnam;
2. Ɔhyew a ɛkorɔn ne nea ɛba fam a ɛko tia, bere tenten-bere a wɔde di dwuma ɔhyew a ɛko tia ade no betumi adu digrii 260 ;
3. Nneɛma a ɛko tia nsɛe;
4. Friction ne wear resistance a ɛba fam;
5. Nsuo a ɛko tia ne insulation a ɛkorɔn;