Halogenation of metallic materials
Halogenation process
Halogenation treatment of ores and concentrates to separate...
Handling and disposal of toxic chromium dust
Hard alloy containing molybdenum
Hard alloy containing molybdenum and tungsten
Hard compositions and methods of preparation
Hard copper alloy
Hard magnetic material
Hard metal body with hardness gradient, such as punching tools
Hard metal composition
Hard metal composition
Hard noble-metal alloy member and process for producing the...
Hard sintered alloy
Hard sintered composition
Hard surfaced non-ferrous articles and method for making the...
Hard tip and method for producing the same
Hard-facing article
Hard-facing matrix composition and method of preparing same
Hardenable copper alloy