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GB1596665A
|
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Apparatus for and a method of feeding molten metal to the ingot during solidification
|
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Improvements relating to welding steel of high hardenability
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Process for welding difficult-to-weld steels
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Process for the manufacture of sintered magnesia
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Improved process for manufacturing sintered magnesia
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Process for the manufacture of calcium cyanamide and products obtained thereby
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Low alloy steel of high mechanical strength, little sensitive to quenching, weldable, etc.
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Improved grinding machine, more particularly suitable for the precision finishing ofthe nose of armour piercing shells
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Improvements in or relating to armour piercing projectiles
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Cooling device for the heads of furnaces
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Cooling device for the furnace heads of Siemens-Martin and similar furnaces
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Regenerator of siemens-martin furnaces
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Siemens-Martin furnace system equipped with regenerators
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Improvements in or relating to siemens-martin furnaces
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CA809914A
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Welding process for self-hardening steels
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CA328149A
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Furnace head cooling device
|
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CA298951A
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Siemens-martin furnace
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