레벨 스위치 제조업체, 레벨 게이지, 레벨 컨트롤러
-Size : 75, 100, 150dia-Material : Steel, SUS-Class : 0.5%, 1.0%, 1.5%-Thread : PF, PT, 1/8, 1/4, 3/8, 1/2-Mercury filled type
Option : Oil fill type