Micron diamond size (less than about 40um) is made from smashed-synthesis diamond was accurately classified. These are almost distinguished metal micron and resin micron by the difference basic element. Unlike in the case of classification of mesh size, micron size is classified by elutriation-classification but, this classification is hard to accurately classify each Lot-number. Especially, the influence causes extensive damage to precision-processing like electronic product and semiconductor etc. And, unlike in the case of denomination of particle size distribution by supplier and consumer, but we can deal specification by project.

Surface-metal coating is provided to add to high bonding power with base metal and high heat resistance.