O-nitrosophenols as extractants for metal values
Object comprising a steel part of a metal construction...
Ods alloy having intermediate high temperature strength
Oil country tubular goods excellent in collapse...
Oil recovery process
Oil soot handling system
Oil well seamless steel pipe excellent in resistance to...
One step process for the treatment of parkes desilvering...
One-stage process for melting down amalgams of aluminum or...
Operating method for slag cleaning furnace in copper refining
Operation method of copper smelting
Operation method of furnace equipment for magnesium alloys
Operation of a blast furnace
Operation of an electric furnace
Optimization of bioleaching process
Ordered arrays of ferromagnetic composites
Ore agglomeration process and apparatus
Ore block
Ore chloridization
Ore chloridization