久久AAAA片一区二区_国产乱人伦av在线a最新_国产国产精品人在线观看_久久无码成人影片亚洲欧洲a∨无码专区_亚洲黄色网站免费_成人亚洲性情网站www在线观看_无码中文av有码中文a

Feature:
A power outage this valve, the valve opens.
Energized, the valve closes.
Parameters:
1, Media types:Water, Oil, Air
2, Working pressure:0.03-0.8Mpa
3, Medium temperature:0-60℃
4, Nominal diameter:10-50mm
5, Connection:Thread