Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
구형판은 배관 시스템에서 유체의 흐름을 조절하는 데 사용됩니다.Guhyeongpan-eun baegwan siseutem-eseo yuchae-ui heureum-eul jojeolhaneun de sayongdoemnida.A globe valve is used to control the flow of fluid in piping systems.