휴대용 NMR Dart™ Direct-Push NMR logging tools DP140J Helios NMR 코어분석기 NMR Rock and Soil Core Analyzer for lab/field NMR Rock and Soil Core Analyzer 비파괴 자기공명 시스템 GMR™ Surface Magnetic Resonance GMR™ 비파괴 자기공명 시스템 GMR™ Flex Lightweight Surface Magnetic Resonance GMR™ Flex