牋牋Adamas Laboratory Corporation has been supplying diamond abrasives to the most exacting standards since 1938, so we have long understood the need for consistency and reliable quality. That is why we always start with only the finest man-made superabrasive stocks available and why we mix our compounds in very small batches using strict statistical quality control procedures. Every batch is tested and Certified, so you can use our products with confidence on your most demanding projects.