免费大片黄国产在线观看-国产一区二区三区四-风流翁熄吃奶水心柔-成年王色男女免费观看-黑 -好妈妈在线观看完整版中文-超碰人妻人人看人人-久久午夜福利精品-2020亚洲无码在线观看

Home / Product

Product

Fire

Fire protection special elastic seat seal gate valve

Nominal pressure:PN1.0~2.5MPa
Nominal diameter:DN50~300mm

In addition to the advantages of the flexible seat seal gate valve, the open degree of the valve can be displayed more directly, so that the opening degree of the valve can be judged at a distance and corresponding measures can be taken in time. Fast and reliable opening and closing, often used in fire fighting systems.

消防專用彈性座封閘閥03.png