Steel Grating Stair Tread
Recommended width of stair tread:
| Center spacing of flat steel 30(mm) | 95 | 125 | 155 | 185 | 215 | 245 | 275 | 305 | |
| T1 T2 T3 T4 | |||||||||
| Center spacing of flat steel 40mm | T1 T2 | 125 | 165 | 205 | 245 | 285 | 325 | ||
| T3 T4 | 115 | 155 | 195 | 235 | 275 | 315 | |||
| Center distance of bolt hole(mm) | 45 | 75 | 100 | 150 | 150 | ||||
Pedal side panel:
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