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

The threaded non metal seal, metal seal two, in addition, the plunger valve is connected with the external thread shape is divided into Z type and drum type two categories, the internal structure of the same, use, mainly used in metallurgy, electric power, chemical industry, oil refining, food and other industries. Pressure is less than 16-25kgf/cm2, the temperature is 250 degrees Celsius below the water, steam, oil and other small diameter pipes for opening, closing the flow with.
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.