The JWK2521 new heavy-duty drafting and winding machine jointly developed by Yuci Jingwei Chemical Machinery Co., Ltd. and China Textile Research Institute Beijing Zhongli Machine Co., Ltd. was recently installed and entered the trial phase.

The project is an experime…

The Party Committee of the Zhejiang Juhua Group Railway Transportation Branch combined the actual work center of this year and carried out the “Party members' target responsibility and commitment system” among all Party members. It is in accordance with the requirements of part…

Abstract: Heat pump technology is a good energy-saving air-conditioning cooling and heating technology, the combination of heat pump technology and solar thermal technology can improve the efficiency of solar collectors and heat pump system performance,…

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200mW Pointeur laser vert puissant visible Prix :30.56 € Promotions : 19.14 € Distr…

Recently, the first gear lubrication and oil use exchange meeting of the China Gear Professional Association was held at the Kuntai Hotel in Beijing. The conference was organized by the China Gear Professional Association's Gear Lubrication and Oil Working Committee, and the Great Wal…

Abstract: This paper introduces the working principle of self-operated differential pressure control valve and discusses the application of the valve in the protection of cold and heat source and the district heating project. Keywords: self-operated pressure control valve cold and heat source p…

This time, chemical companies have a feeling that they have been forced to a dead end—natural gas prices have just risen, and now coal has to rise again!
At the just-concluded National Key Coal Production, Transportation and Demand Coordination Meeting, the National Development and…