精品久久久久久无码中文字幕一区,日韩乱码人妻无码中文字幕,少妇无码AV无码专区在线观看,国产日韩成人内射视频

Language version:中文版 | English | ??? ??
Home/
Products

Products Name:Type 527 mechanical seal

Products Details:Single ended seal / unbalanced / arbitrary direction / multi spring structure

Operating parameters:

The pressure in the seal cavity: 0~0.8MPa seal cavity temperature: -20 degrees C ~+150 line speed: 20r/sec