Engine : General Subjects - 1722/1128
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| With reference to the oxyacetylene welding of high carbon steels, hard-facing, and the welding of non-ferrous alloys, such as monel, the best flame to use is termed a/an __________. |
| A) nitriding fusion |
| B) neutral flame |
| C) carburizing flame |
| D) oxidizing flame |
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