Nā Pono Mea
Hoʻohana ka mea o ka disc brake i ke kūlana hao hina hina 250 o koʻu ʻāina, i kapa ʻia ʻo HT250, kahi like me ke kūlana ʻAmelika G3000. ʻO nā koi no nā mea nui ʻekolu o ka hoʻohui kemika: C: 3.1∽3.4 Si: 1.9∽2.3 Mn: 0.6∽0.9. Nā koi hana mechanical: ikaika tensile>=206MPa, ikaika kūlou>=1000MPa, deflection>=5.1mm, nā koi paʻakikī ma waena o: 187∽241HBS.
