دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a fine, very hard, gray crystalline powder, a compound of tungsten and carbon. This compound is bonded with cobalt or nickel in cemented carbide compositions and used for cutting tools, abrasives, and dies.

n: The gray stiff powder,cannt dissolve in the water, but can dissolve preferablly in the nitric acid and hydrofluoric acid.

a hard, abrasion resistant compound used in cutting tools such as mills and bits.