Halidation of nonferrous metal values in manganese oxide ores
Hard alloyed powder and method of making the same
Hardening of metals
Heat recovery and melting system for scrap metals
Heat-insulating agent for molten metal
Heavy metal removal process
High alloy steel making
High charge, low leakage tantalum powders
High intensity lead smelting process
High purity sputtering target material and method for preparing
High purity titanium production process
High purity Zr and Hf metals and their manufacture
High shrinkage powder body
High temperature alloys synthesis by electro-discharge compactio
High temperature chemical reaction processes utilizing fluid-wal
High temperature reduction of copper salts
High-temperature pretreatment by means of an alkaline aqueous so
Highly orientable iron particles
Highly pure titanium
Highly pure titanium and process for producing the same