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Specification
Block No. | Suitable Steel Thickness | The distance between the block surface to the flat. S | Block Thickness T |
l | >20~40 | 15 | ≥20 |
2 | >40~60 | 30 | ≥40 |
3 | >60~100 | 50 | ≥65 |
4 | >100~160 | 90 | ≥110 |
a | >160~200 | 140 | ≥170 |
6 | >200~250 | 190 | ≥220 |