| No. | Item | Specification |
| Raw material | 30MnSi,30Si2Mn and other alloy spring steels | |
| Diameter | φ7.1mm; φ9.0mm; φ10.7mm; φ12.6mm; | |
| Working speed | 100m/min for φ7.1mm bar; 90m /min for φ9.0mm bar; 70-75m /min for φ10.7mm bar; 50m/min for φ 12.6mm bar; | |
| Induction quenching temp. | ≤950ºC constant and adjustable | |
| Induction tempering temp. | ≤450ºC constant and adjustable | |
| Temp. control accuracy | ≤ ±5ºC | |
| Take-up coil dimension | φ1800-φ2200mm | |
| Center elevation | 1000mm | |
| Production method | Continuous production | |
| Finished products | 1) Products keep consistent with JISG3137-2008 and GB/T5223.3-2017 standards |