基本释义:

阀座环、密封圈

网络释义

1)seat ring,阀座环、密封圈

2)valve seat insert,阀座密封圈

3)seal holder ring,密封座圈

4)stem packing retainer,杆密封座圈

5)flat-sealed valve,平座密封阀

6)sealing surface of seat,阀座密封面