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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. -
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. -
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. -
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. -
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. -
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. -
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. -
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. -
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. -
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.