超清av在线播放不卡无码,又粗又硬又长又大又黄的亚洲6页,日韩中文字幕有码无码视频,国产乱人精品视频

Feature:
This valve is compact, sensitive, and long life.
Parameters:
1, Media types:Air, Water, Oil,
2, Working pressure:0.03-0.8Mpa
3, Medium temperature:0-50℃
4, Nominal diameter:50-200mm
5, Connection:flange