国产全肉乱妇杂乱视频,久久日产一线二线三线品,无套内谢少妇毛片A片樱花,日本激情特黄三级激情视频

Home / Product

Product

H41X

H41X energy-saving silencing check valve

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

The silencing check valve is suitable for water supply and drainage pipeline. The valve disc is guided by the central shaft at both ends of the import and export. The opening and closing are flexible and can be installed horizontally or vertically. The valve disc is loaded by spring, and its quick closing can effectively eliminate the water hammer, with good sealing performance and no noise. It has the advantages of small volume, light weight, small fluid resistance, fatigue resistance, long life and so on.

H41X節能型消聲止回閥03.png

Typical installation diagram

H41X節能型消聲止回閥04.png

      <center id="vudui"></center>

      <center id="vudui"></center>

      • <u id="vudui"><listing id="vudui"><pre id="vudui"></pre></listing></u>
      • 主站蜘蛛池模板: 成 人 黄 色 免费 网站无毒| 三年片在线观看大全国语| 汝城县| 宁城县| 鹤岗市| 新余市| 呼和浩特市| 欧美丰满一区二区免费视频| 淳安县| 欧美黑肥妇野外bbw| 欧美性交电影| 全黄H全肉短篇禁乱NP慕浅浅| 精河县| 餐桌下狂c亲女高辣h文| 100国产精品人妻无码| 蜜臀久久99精品久久久久久小说| 成全在线播放视频在线播放| 日本无码av手机在线看| 日本成本人片无码免费网站| 谢通门县| 无码成人精品区在线观看| 欧美另类人妻制服丝袜| 都昌县| 人妻少妇久久中文字幕| 杭锦旗| 欧美人体艺术摄影| 盐山县| 金川县| 日本乱人伦av在线观看| 漠河县| 福清市| 精品国产精品人妻久久无码五月天| 临沭县| 沅江市| 日本道av无玛无卡三区| 国产日本无码色情AⅤ免费看| 成全影视大全免费追剧大全| 霍林郭勒市| 大悟县| 吉安市| 平邑县|