Nowadays, the valve market is mixed, and unscrupulous traders are making huge profits. The counterfeit and refurbished valves are shoddy, which brings great safety hazards to the installation project.
Recently, the Ministry of Industry and Information Technology released Document No. 23 of 2018, approving 594 industry standards and 63 industrial measurement technical specifications. Among them, the four valve industry...
First, DN (Nominal Diameter) means the nominal diameter of the pipe, which is the average of the outside diameter and inside diameter. The value of DN = value of De - 0.5 * tube wall thickness. Note: This is ...
In the recent survey and research activities conducted by the Municipal Science and Technology Bureau, the issue of scientific and technological innovation of enterprises has become the focus of researchers. This year, the Municipal Science and ...
From May 10 to November 11, the Chinese Academy of Sciences held a meeting of experts in the development of the Institute of Instrument Research, and more than 20 instrument development experts attended the meeting. The conference mainly ...
[China Chemical Instrument Network Policy and Regulations] The construction of the automatic surface water monitoring station is still underway. However, the groundwater monitoring project has reached an important stage of maintenance. According...
Liu Zhenjiang, secretary of the China Iron and Steel Association Party Committee and Secretary General, said at the press conference of the China Steel ...
On the 28 day, according to the official disclosure of the Lanzhou University of Technology, the first domestic 600 ℃ high temperature liquid lead bismuth alloy transmission shielding pump made by the...
Blockchain technology is one of the most cutting-edge technologies in the current information technology industry and has attracted great attention from all walks of life.