久久在精品线影院精品国产_国产精品一区二区久久不卡_国产内射999视频一区_国产99久久九九精品无码_人妻熟妇乱又伦精品视频无广告_久久在精品线影院精品国产_国产精品一区二区久久不卡_人妻熟妇乱又伦精品视频无广告_7878成人国产在线观看_久热国产VS视频在线观看

簡體中文版 English

Product List

Q647 pneumatic fixed ball valve in the oil, natural gas, coal and ore extraction, refining and pipeline systems; in chemical products, pharmaceutical and food production; in the electric power production system of hydropower, thermal power and nuclear power; in the city and industrial water supply and drainage, heating, and gas supply system; in the fields of irrigation and drainage system; can be widely used in metallurgical production system, is an important kind of mechanical production and construction, national defense and people's lives. Ball valve is closed in all kinds of pipeline system for cutting off or through the media flow, so that the media in accordance with the scheduled procedures to transport to the designated point.
Flow resistance is small, with the lowest flow resistance, good sealing performance and long life.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, caliber. Specific please contact or online advisory contact.
Mandatory
Mandatory
Mandatory
Mandatory

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