Search tags：PC400-5 PC400-5 Excavator Idler/Idler Assy/Front Idler Roller Body: 50 manganese steel with good hardenability is used. After quenching and tempering treatment and medium frequency induction quenching, its strength and wear resistance are guaranteed. Idler Assy
Roller Body: 50 manganese steel with good hardenability is used. After quenching and tempering treatment and medium frequency induction quenching, its strength and wear resistance are guaranteed.