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 JJY1 meter valve sleeve has convenient installation and disassembly, firm connection, is conducive to the prevention of fire and explosion and has the advantages of high voltage capability, good sealing performance, is an advanced connection mode of the valve power plant, oil refinery and chemical equipment and instrumentation in the measurement pipe. Needle valve is a precise adjustment of the valve, a wide range of uses, such as cutting the flame cutting distance, adjust the flame temperature knob is needle valve. The instrument needle valve is an important part of instrument measuring pipeline system. It mainly consists of globe valve and ball valve. Its function is to open or cut off the passage of pipeline. The spool of the needle valve is a very sharp cone, which is inserted into the valve seat as if it were a needle.
Order note:
If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material and so on. Our technicians will select for you
Two. Provided that the selected model is available according to the selected model
Three, non standard products need to provide samples or confirmed by drawings
Note: the information is for reference only, or incomplete, so please feel sorry for the inconvenience. The company can choose according to different requirements and parameters. The company has a variety of sizes, pressure, different materials, connections, drive mode, to meet the different needs of the needle valve. Please contact 021-6651 8677 or consult online.
Mandatory
Mandatory
Mandatory
Mandatory

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