| 1 | Tonal eyelets at inner side. | |
| 2 | The holes for the bolts registered perfectly. | |
| 3 | This eyelet is so small that even the smallest screw cannot pass through. | |
| 4 | We have been given the school papers with holes already punched in them to fit into the binders. | |
| 5 | Squeeze cementing uses pressure to force the cement through holes or perforations in the casing. |
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