Kjeldahl is an important instrument for the determination of protein content. It has a very important application in many fields of industry. It is precisely because of the wide range of applications of this instrument that Kjeldahl instruments have many models, such as Top The.......

When we are doing business, w.......

With the development of the automobile industry and China's accession to the WTO, the domestic and international markets are increasingly demanding on the quality and cost of automotive forgings, such as draft angles, weight tolerances, dimensions, and machining allowances. The price .......

China Drying News: This year's late rice was originally full of grains, and it was in full bloom. However, during the season of open croppi.......

Recently, the first batch of “used cars” certified by the China Automobile Dealers Association was listed on the Beijing Asian Games Village Auto Trading Market. These used cars have passed 114 tests in accordance with national standards. The China Automobile Dealers Association.......

Safe production refers to efforts to improve working conditions, overcome unsafe factors and prevent casualties during labor processes, so that labor production can be carried out under the premise of protecting the safety and health of workers and the safety of state property an.......

Many motorists have had this kind of experience, that is when you look down at the dashboard or mobile phone information, it is very difficult for you to observe the road ahead, and this is very easy to accident. The data shows that when the driver's eyes leave t.......

Frequency control technology has been widely used in low voltage asynchronous motors. In the application of high-voltage (3kV and above) motors, although the technology tends to be mature, the cost is high and limited. Therefore, the investment analysis was first carried out, and co.......