ecured by the metal and closing any adding some _ spiegeleisen cavities which might form as the blown metal is being during cooling in the cast- poured into the ladle. The ing. open-hearth process, how- FLuip Compressor.—The ever, occupies from eight metal which is to be work- to twelve hours for… … large regulating valves shown in our en- draulic forging press. The mandrel graving below:the serves as an in- charging plat- ternal anvil, and form. From _ the the work of the valves. the -gas press is concen- passes through a trated upon less mass of firebrick . than half of the checker - work…
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