For the future, China's economic operation is still in the critical period of consolidating stability and recovery, therefore, the task of maintaining growth is still arduous, and the task of adju
Each type of valve material can be selected according to the actual working conditions, the use of each material temperature is very different, there are room temperature type, medium temperature type
The kilogram (kg) is the legal unit of measurement of mass in the International System of Units, and the pound (lb) is the imperial unit of mass used in the United Kingdom and the United States, which
The butterfly valve is mostly used in the water system pipe, and the water system pipe is related to the people's livelihood, so the butterfly valve can be said to be a common valve. However, the
Advantages and disadvantages of various valves:1, gate valve: Gate valve refers to the closing part (gate plate) along the vertical direction of the channel axis of the valve, mainly used as a cut off
At first glance, the valve parts are not many, the structure is simple, the accuracy is general, and it is a simple part in the mechanical industry, but the core sealing part of the valve is particula