The experience of GC column configuration is very common. The friend who uses the gas chromatograph for the first time does not know how to configure the column properly. He always hopes that the more columns, the better. He blindly purchases many columns or fixatives, supports, etc., resulting…
Cummins will demonstrate in Paris on construction machinery exhibition meet the United States and Africa highway Phase IV Final emission standards (EPA Tier 4 Final / EU Stage IV) QSB series of 6.7 lite…
Daqing Petrochemical Company's 1.2 million ton ethylene renovation and expansion project site, the main construction of the central control room,…
Brush screen God man sent two years more than 162 million microblogging content covers all aspects of diesel generator | diesel generator price / 2012-…
After years of rapid growth, China's auto sales market is returning steadily. With the continued increase in the number of car ownership, the after-sales service market has become even more eye-catching. In particular, as a continuation of the vehicle sale…
　　 The working principle and characteristics of aluminum air battery
The chemical reaction of aluminum air battery is similar to that of z…
The young man asked the media to help him to advertise that he was too hard to work as a worker. He was a diesel generator | diesel generator price / 2…
Class C steel gears are mainly subjected to dynamic loads or impact loads during operation, so welds are required to have better overall performance. Due to the poor weldability of C-grade steel gears, cold/hot cracks are easily generated during welding. Therefore, several problems must be…
Gate valve opening and closing pieces is the gate, the direction of movement of the gate and fluid perpendicular to the gate valve can only be fully open and closed, unsuitable for regulation and throttling. The gate has two sealing surfaces. The two most commonly used wedge gate valves form…
Recently, the two-phase expansion project for the entire vehicle production capacity of SAIC-GM-Wuling Qingdao Branch, which was built for one year, was officially completed and put into production. SAIC-GM-Wuling provided production capacity protection for the com…
The coolant temperature sensor consists of a negative temperature coefficient thermistor that is very sensitive to temperature changes. This resistance has the property that the higher the outside temperature is, the lower its resistance value is. According to this characteristic, the temperatu…