323. Upset forging
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324. It is required to reduce a slab directly to strip in one phase. Which of the following rolling mills can do this function ?
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325. In four high rolling mill the bigger rollers are called
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326. A polished and etched surface of the cross-section of a hot worked product will be having
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327. The machinery/equipment used in the production of channels of I-section, rail sections, angles, etc is called
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328. In a four high rolling mill, the diameter of backing up roll in comparison to diameter of working rolls is
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329. Large size bolt heads are made by
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