E90 bushing 30x34x70

Rods made of high-quality carbon structural steel compliant with the Japanese standard S45C, the American 1045, and the German C45. They exhibit higher strength and resistance to deformation than ordinary steel A3. The rods are hardened at a temperature of 840°C and tempered at 600°C, followed by chrome plating to improve wear and corrosion resistance, resulting in a hardness level of 52-58 HRC.