Disc – machined seating surface is mated to seat ring for positive shutoff.
Disc – machined seating surface is mated to seat ring for positive shutoff.
阀瓣-机加工阀座表面，配置阀座环，实现积极有效的关闭。
Disc – machined seating surface is mated to seat ring for positive shutoff.
阀瓣-机加工阀座表面，配置阀座环，实现积极有效的关闭。