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Market concerns about demand remain There is room for downward adjustment in copper prices
Time of Update: 2022-12-25
On Monday (August 29) the UK coincides with the summer bank holiday, the London Metal Exchange (LME) is closed, and trading will resume on Tuesday (August 30).
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Shanghai copper continues to fluctuate and rise, and the short-term trend has become stronger
Time of Update: 2022-12-15
Shanghai copperOn the macro level, China's top leaders met with U.
Shanghai copperOn the macro level, China's top leaders met with U.
Shanghai copperOn the macro level, China's top leaders met with U.
Shanghai copperOn the macro level, China's top leaders met with U.
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Foreign trade and consumption scale both hit record highs
Time of Update: 2022-09-04
Our reporter Han Songyan Since the 18th National Congress of the Communist Party of China, China has become the second largest commodity consumption market in the world, the total value of trade in go
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Improved silver coating on medical devices prevents infection
Time of Update: 2022-05-11
In a study in ACS Central Science, a team describes a new, long-lasting silver ion-releasing coating that, in mice, prevents bacteria from attaching to implants and then kills them .
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How to improve the freeze-drying efficiency of Sihuan freeze-drying vacuum freeze-drying machine
Time of Update: 2022-05-05
Generally, the thinner the material thickness, the faster the heat and mass transfer, and the shorter the drying time .
The mass transfer rate mainly depends on the temperature and pressure of the sublimation interface and the surface of the drying layer .
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Potassium sulfate is almost half a step away from improvement
Time of Update: 2022-03-28
It can be seen from the chart below that from the very difficult period in September to the present, the decline in the operating rate of the Mannheim industry is not so obvious, so the current potassium sulfate market is still in the first difficulty.
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Activated carbon fiber (ACF) preparation method
Time of Update: 2021-11-15
The activation reaction is the main process for the ACF to generate abundant micropores, high specific surface area, and form oxygen-containing functional groups .
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The team of Professor Li Chenghui of Nanjing University "ACS AMI": High
Time of Update: 2021-07-20
In order to visually test the self-healing properties of HPUrea , the author first demonstrated its cutting - contact - repair - stretching process at room temperature (Figure 3 ) .
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American PLEXUS structural adhesive enters my country's automotive market
Time of Update: 2021-04-26
[China Epoxy Resin Industry Online] July 14, 2004, the world's famous structural adhesive supplier-the latest product of the United States Praxair (ITW PLEXUS) company has entered the automotive adhesive market in my country, the first to try two large The heavy-duty truck factory stated that it is ideal to replace polyurethane adhesives with PLEXUS structural adhesives.
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Talk about the development and status quo of lead-free paint technology
Time of Update: 2020-11-29
Reducing lead pollution and promoting lead-free paint is one of the trends in the development of paint, this paper introduces the source of lead-containing components in coatings and the development o
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Astro-astic acid content determination (2,6 ichlorophenol
Time of Update: 2020-10-27
With this dye titration astrochmic acid to the solution is light red as the end point of titration, according to the dye consumption can be calculated in the sample also prototype astrophic acid content.
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Zhang Zhenjie research group and collaborator of Nankai University: successfully constructed a kind of self-healing super crosslinked polymer metal organic cages (hcmops) composite membrane
Time of Update: 2019-07-24
Membrane materials have been listed in the "13th five year plan" special project of new materials, which is a national key development field At present, most of the commercialized membrane products ar
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The product value added of most enterprises is low
Time of Update: 2014-04-22
Source: International Business Daily, April 22, 2014, learned from China Chamber of Commerce for the import and export of medical and health care products (hereinafter referred to as the chamber of Co
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Development, advantages and disadvantages of industrial butterfly valve
Time of Update: 2012-06-11
The closing part of the butterfly valve is a disc-shaped, which rotates around a fixed shaft in the valve body to open, close and adjust the fluid channel The utility model has the advantages of simpl
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Characteristics and principle of metal plane sealing butterfly valve
Time of Update: 2009-11-13
In recent years, with the development of modern industry, the use of butterfly valve has expanded from low-pressure water supply to medium with temperature higher than 538 ℃ and - 184 ℃ and pressure f
