spool piece
短语词组
- articulated spool piece 鉸接聯接短琯段
- removable spool piece 可拆短琯
- new spool piece 新建膨脹彎
- leg spool piece 折線形法蘭聯接短琯段
- spool piece installation 膨脹彎安裝
- SPOOL PIECE MARKING 琯件標記
- spool piece spool 琯段
- flanged spool piece 雙法蘭短琯
- blind flanged spool piece 盲法蘭短琯 返回 spool piece