Ihe akụrụngwa
Ihe nke diski breeki na-eji isi awọ nke obodo m dị ka Park 250, zoro aka na Stath G3000 ọkọlọtọ. Ihe ndị a chọrọ maka ihe atọ nke mejupụtara kemịkalụ bụ: C: 3.1/3.4 si: 1.9∽2.3 mn: 0.6∽0.9. Mechanical performance requirements: tensile strength>=206MPa, bending strength>=1000MPa, deflection>=5.1mm, hardness requirements between: 187∽241HBS.