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| Material | Steel or Alloy or Alloy Butted | Diamete | Φ25.4| Width | 560 580 6…
| Material | Steel or Alloy| Diamete | Φ25.4| Width | 560 580 600 620mm | Back Sw…
| Material | Steel or Alloy | Diamete | Φ25.4| Width | 560 580 600 620 640mm | Ba…
| Material | Steel or Alloy | Diamete | Φ25.4| Width | 560 580 600 620 640mm | Ba…
| Material | Steel or Alloy | Diamete | Φ25.4 | Width | 460 490 530 560mm | B…