dished head 碟形封头 ; 碟形底 ; 碟形端板

reversed dished head 凹形封头

spherically dished head 球冠形封头 ; 球形封头

integral cast iron dished head 整体铸铁碟形封头

flanged and dished head 带折边的碟形封头

spherically dished bottom head 半球形底封头

flanged and conical dished head 带折边的锥形封头

flanged and shallow dished head 带折边的浅碟形封头

flanged and standard dished head 带折边的标准碟形封头

flanged conical dished head 折边锥形封头