First of all, the production process of rolling black copper rods by cold rolling mills is backward, and its black copper rods have high oxide content, low electrical conductivity, poor performance, low pull-to-weight ratio, and serious consumables, energy consumption and pollution. Eliminated. Se
Coal mining companies mined underground reserves of non-renewable resources of coal industry. Since China's coal mines are mainly mined in the form of mines, it has several characteristics: 1. Production and construction cycle, coordinated development In order to extract the coal buried deep u
I. Project Overview The main shaft has a diameter of 3.88 meters and a depth of 353.8 meters. The wellbore is equipped with a lifting load signal cable. The mining commission decided to add a production monitoring cable (cable length 600m). After research, it was decided to lay down from the main w
Core Tip: One day, a source in Qinghai Province Temple Door County Ditch gold mine gold mining team of 13 workers, as usual, took the iron shovel came in June 1997 in the ditch beside the spiny dig the bunker. Under the scorching sun, the worker Xiao Liu sweated and the other workers repeated the sa
On the 23rd, NVC Lighting (hereinafter referred to as the company) announced that the company intends to acquire the remaining 60% equity of Hong Kong Weilan Core Light Trading Co., Ltd., which is owned by Luoman International. The acquisition price is 500 million yuan. According to the previous ann
In recent years, the market for new energy vehicles has been hot, and as the most important infrastructure for new energy vehicles, charging piles have benefited significantly. In the context of a “buzzing up†industry, how are the performances of listed companies in charging piles in
The UVB and UVC portions of the UV spectrum are more difficult to develop in terms of performance. Therefore, UVB and UVC LEDs require more expensive and time consuming development, leading to new UVB and UVC LED manufacturers facing a much higher threshold. For this reason, the UVB/UVC market is de
In 2018, Google’s Waymo had to be commercialized. The start-up company that was established at this time had a play in the auto driving business. The answer for this Shenzhen company is that there is a play, as long as it goes directly to the mass production road. On May 11, China's S
Yesterday, an online Geely chairman, Mr. Li Shufu, paid tribute to Changwen, who has been in reform and opening up for 40 years. His six entrepreneurial experiences are enough to inspire readers with dreams. Among them, once again mentioned the view of the new forces of the constructors, "at
Visual inspection First of all, the overall appearance of the PLC system can be checked and the risk factors in the system can be checked in a timely manner. For example, some parts that have entered the wear out period should be replaced at regular intervals; corresponding measures must be taken