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GB761422A
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Improvements in cast polygonal ingots
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GB750932A
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Means for comminuting shavings formed when cutting screw threads in metal
|
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GB747557A
|
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Improvements in or relating to the production of welded tubes
|
|
GB726555A
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A method for the production of work pieces for rolling mill treatment, especially tube blooms, by continuous casting
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GB748992A
|
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Manufacture of steel
|
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GB676935A
|
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Improvements in or relating to electric arc welding
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DE823524C
|
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Method for measuring the pipe wall thickness in the manufacture of pipes in stretch-reducing mills and regulating them during the rolling process
|
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DE856734C
|
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Process for smoothing seamless, preferably pilgrimed pipes with wall thickness tolerances of over 10%
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DE895558C
|
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Process for the production of composite steel sheets for blow-off pipes by roll welding
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