Removable/replaceable ,functional parts of the valve that are exposed to the flow medium such as stem,closure member and seating surfaces is termed as trim.(Valve body,bonnet,yoke does not include in trim)
พลาสมา / replaceable , งอก , ลบม valve ของ the that are exposed to the medium พูดถึง such นํ Bo , member ( โอ้ . seating is termed จุด express มันสมในใน yoke valve ณ , , , does not include in trim )