Process for polishing surface of memory hard disc

Process for preparing an abrasive sheet

Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies a

Process for producing sintered material based on aluminum oxide

Process for production of diamond abrasive grains

Process for the manufacture of filamentary abrasive particles

Process for the manufacturing of grinding elements from aluminiu

Process for the production of grinding tools and tools produced

Process for the production of sintered material based on .alpha.

Process of making a coated abrasive for diamond grinding wheels

Processes and compositions for abrasive blast cleaning

Products and process for making multigrain abrasive compacts

Products for use in polishing and the like and process for produ