electric-contact grinding
121niobium processing — Introduction preparation of the ore for use in various products. Niobium (Nb) has a body centred cubic (bcc) crystal structure and a melting point of 2,468° C (4,474° F). Of the refractory metals, it has the lowest density and best… …
122Mercy for Animals — Abbreviation MFA Formation 1999 Type Non profit Purpose/focus Animal rights …
