Kjeldahl method

The principle of Kjeldahl method: Protein is a nitrogen-containing organic compound. The food is heated and digested with sulfuric acid and a catalyst to decompose the protein, and the decomposed ammonia is combined with sulfuric acid t

What is graphite centrifugal pump

ih series of graphite centrifugal pumps for the single-stage single-suction wall centrifugal pump. Is the use of iso2858 standards, combined with the special graphite performance and processing technology and carefully designed and manufactured products. The product has the advantage

Dongfeng Dana Axle Bridge at the Xiangfan plant hits a new monthly high

As of July 23, Dongfeng Dana Axle Xiangfan Factory completed 10,179 front axle assemblies, 6813 rear axle assemblies, and 182 new bridge assemblies in July, setting a new monthly high output.

In the traditional off-season in July, the new products of the “Hino”,

BYD Electric Bus Wins Bus Sales at the End of Year


Recently, BYD officially obtained the passenger car production catalog, and will use it to enter the production and sales of electric buses. According to BYD's relevant person in charge, the first batch of electric buses will be rolled out within the year.

BYD Bus s

UK invests and builds 30,000 tons of green silicon carbide project annually

On September 2, the signing ceremony of the 18th Urumqi Fair Ili State Trading Group was held at the Press Center of Xinjiang International Expo Center. A group of large corporations and large corporations have signed contracts with Yili State Trading Group. A total of 26 projects have been fo

Abbe refractometer use method

Abbe refractometer use method

1. Preparation and Correction Place the refractometer in a well-lit place and connect it to a constant temperature water bath so that the temperature of the refractometer prism is 20°C. Then, the lower prism (mirror 18) is opened, twisted