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Machinery manufacturing company from China.
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| Roller shell material | 50Mn/45# |
| Surface Hardness | HRC48-58 |
| Quench depth | >4mm |
| Roller shaft material | 45# |
| Surface Hardness | >2mm |
| Base collar material | QT450-10/45# |
| Developed scope | below 100 series,100 series,200 series,300 series,400 series,600 series,800 series,1200 series |
