In recent years, with the continuous development of the city and the towering high-rise buildings, fire evacuation passages have become an indispensable part, and fire passages cannot lack the use of fire doors. Fire doors are a common building that can be opened or Closed fire partition component

Weather and meteorological changes are very important to modern agriculture. In order to accurately grasp weather changes, a very important link is to measure and collect various meteorological elements. Therefore, meteorological instruments are essential, and portable meteorological ins

Project requirements In order to respond to the national call for energy conservation and environmental protection, and with the in-depth reform of the judicial system, in order to improve the decision-making level of the prosecution committee and improve the efficiency of government affairs, it

Whether the QR code access control system can support visitor management depends on whether the system has a software background and whether it has management functions. A set of two-dimensional code access control system that can support visitor management, specifically requires the following fun

On September 21st, the high-end real home squatter lighting city will be officially opened. This is the first time that a comprehensive home store has entered the professional lighting field. The industry believes that the current high-end lighting market development is not enough, there are still

Recently, China South Locomotive successfully developed China's first high-power fast passenger electric locomotive. Recently, CSR Zhuzhou Electric Locomotive Co., Ltd. announced that China’s first high-power AC drive rapid passenger electric locomotive developed by China has been succe

According to the latest data released by the European Automobile Manufacturers Association (ACEA), sales of new commercial vehicles in Europe fell by 17% year-on-year to 204,118 units in October. The market demand in Western Europe fell by 17.5%, while the sales volume in the new EU member countr

Dump truck diesel engine is usually equipped with a gear type Oil Pump , which is installed in the oil sump of the engine and consists of a pump body, a pump cover, a pump shaft, and a main driven gear. The end of the pump cover is provided with an oil tank unloading tank and an oil return hole.

The main project of the Hong Kong-Zhuhai-Macau Bridge, the longest cross-sea bridge in the world, formally passed yesterday and has become another masterpiece in the history of China's bridges. According to reports, Hong Kong-Zhuhai-Macao Bridge is 55 kilometers in length. The three waterway

Summary of contents: Through the efforts of domestic safety valve companies, they have made remarkable achievements in technology, product quality and service. Now the domestic safety valve has basically met the needs of the domestic market. However, as far as the status quo of China's

Recently, Pinghu Shuntian Agri-oil Co., Ltd. has introduced the first heat pump grain dryer in Jiaxing City, which has been assembled and commissioned and put into use. The emergence of heat pump type grain dryers broke through the monopoly of traditional fuel-type, coal-fired and bio-fuel grain d

With the rapid development of the Internet, almost all traditional industries have fallen into the cult of the Internet. Any project is uneasy about the name of "Internet +", and almost all are embarrassed to talk to people. In the automotive service industry, there is actually such a tre