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Building Materials - Section 1 :: Discussion
| 49. | The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as | |
| A. | Cementation process | |
| B. | Crucible process | |
| C. | Bessemer process | |
| D. | Open hearth process. | |
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