国产又粗又黄又爽_中国女人a毛片免费全部播放_国产女人被躁高潮视频在线视频最新_一级毛片免费完版_成人精品欧美日韩_五月丁香色综合久久4438_国产成年人免费观看91视频_宅宅236伦理2019最新_blue在线观看视频全集资源_国产欧美日韩麻豆三级

簡體中文版 English

Product List

The valve seal with wear resistant and corrosion resistant material, prolong the service life of the valve.
In high temperature and high pressure conditions, the import side of the damper is designed to pressure in the cavity pressure relief means to prevent the temperature change caused by abnormal increase of the phenomenon, to ensure safety.
Fully sealed structure, good protective performance, all-weather use.
Note: parameters are for reference only,?or?are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact?or?online advisory contact.
Mandatory
Mandatory
Mandatory
Mandatory

Be sure to write clearly consulted or purchase products detailed parameters and quantity.