扶梯链片
| 合金结构钢 | 20Cr 20CrMo 20CrMnTi 35CrMo 37Mn5 40Cr 40Mn2 42CrMo 45Mn2 | GB/T3077 JB/T8545
| ST66 ST100A ST100B ST100C ST100D ST100E ST133A ST133B ST133C ST67A ST67B ST67C ST67D ST68A ST68B ST101A ST101B ST101C ST135A ST135B ST135C ST135D ST135E ST135F ST136 |
