Ball valves and butterfly valves are more commonly used valves. Some occasions can be common, and some conditions can only use one of them. The difference between the two lies mainly in the structure and switching principle. Our brief analysis: Ball valve: Plug valve evolved, opening and closing pie-----
On January 26, Yaxing Bus, in cooperation with Yangchai and Nan Weike, based on the theoretical calculations and experiments of the three-party technical team in the first four months, made the best fuel-saving combination formula of Koest, namely, Yangchao 4102 high horsepower. The engine YZ4DA7------
Jinan Engine Co., Ltd. Jinan Engine Department's measurement management system has recently passed AAA certification. The review team went deep into the relevant departments and carefully reviewed the company's measurement management system documents, the company's highest measu-----
The Jinhua Chemical Group Chlor-alkali Co., Ltd. announced today that after the company's financial function management department conducted a self-examination, it found that due to the impact of international financial crisis and other factors, the company’s production and operation suf-----
The tire company Bridgestone’s European company announced on April 28 that it has signed a long-term supply contract with the Swedish Volvo Group to supply Bridgestone’s new tires R249 EVO and R297 EVO to Volvo Trucks. Prior to this, Bridgestone had become the long-term prefer-----
1, boost, packing, automatic pressure and the pressure curve shows the value of the function. The pump before use, simply set the upper and lower pressure gauge on the electrical contact pressure gauge and then use the remote control to start the pressure test pump within a certain distance, when t-----
Single crystal/polycrystalline silicon and thin film solar cells. At the State Council executive meeting on August 26, 2009, polysilicon was “named†due to overcapacity and redundant construction. The industry's expectations for thin film replacement of polysilicon are increasing. Th-----