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Shanghai copper fluctuates in a narrow range, and the upward momentum is still weak
Time of Update: 2022-12-05
The Shanghai copper 1706 contract oscillated to 46030 yuan / ton during the day, partly boosted by the pressure on the US dollar index, but its upward momentum is still weak, the rebound height is limited, and the operation still needs to be cautious.
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Copper prices are weak
Time of Update: 2022-12-05
Copper pricesIn terms of external trading, liquidity at the end of the quarter tightened again, interbank market capital prices, treasury bond repurchase rates, interbank interest rate swap prices and interbank deposit certificate interest rates rose across the board, after Wednesday's open, the two markets opened low, commodities fell collectively, London copper opened low at 5768.
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July 1 Shanghai copper morning review
Time of Update: 2022-12-02
Market: On June 30, Shanghai electrolytic copper spot reported a discount of 10 yuan / ton - 40 yuan / ton of water premium, and the transaction price of flat water copper was 37400-37580 yuan / ton.
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Shanghai aluminum maintained a volatile downward trend during the day
Time of Update: 2022-12-02
Shanghai aluminumMacro: The Asian dollar index stabilized, basically maintaining its gains in the past week, and is now trading around 94.
Shanghai aluminumMacro: The Asian dollar index stabilized, basically maintaining its gains in the past week, and is now trading around 94.
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In the first quarter, the profit of chemical raw materials and products industry increased by 3.43 times year-on-year
Time of Update: 2022-08-28
From January to March, the cost per 100 yuan of operating income of industrial enterprises above designated size was 83.
From January to March, the cost per 100 yuan of operating income of industrial enterprises above designated size was 83.
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What lightweight materials can increase the cruising range of new energy vehicles
Time of Update: 2022-08-18
Jinyang long glass fiber PP engine cover parts The PP-LGF series products developed by Jinyang use a special die head to forcefully disperse the glass fibers, and each glass fiber is evenly coated with plastic materials.
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2021 China's top ten scientific progress released two chemical achievements selected
Time of Update: 2022-04-25
The two chemical achievements of "synthesis from carbon dioxide to starch" and "large-scale preparation of high-performance fiber lithium-ion batteries" were selected .
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"Developed limbs, simple mind" overturned
Time of Update: 2022-03-08
The authors believe that selenoproteins produced during exercise are key to helping the brain grow new neurons, and humans may be able to use dietary selenium supplementation to reverse cognitive decline caused by aging and brain damage .
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"Agricultural Technology Tips" Technical Guidance Opinions on the Safe Use of Vegetable Pesticides during the Spring Festival in 2021
Time of Update: 2022-02-18
All production bases strengthened the cold and warm protection of vegetables in a timely manner to prevent the occurrence of freezing damage and low temperature diseases (such as gray mold, soft rot, and sclerotia) .
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The latest paper published by Nature of Zhejiang University: The first analysis of the three-dimensional structure of barley chloroplast photosystem I-NDH super-large complex
Time of Update: 2021-12-30
This study analyzed the high-resolution structure of higher plant PSI-NDH complex for the first time, and revealed the structural basis of PSI-NDH-mediated regulation of photosynthetic ring electron transport .
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Allyloxy polyether carboxylate copolymer
Time of Update: 2021-12-08
Allyloxy polyether carboxylate copolymer[Preparation method] A polymer (CAABS) formed by copolymerization of acrylic acid (AA) and p-methallyloxybenzene sulfonic acid (MBS) and another small molecule 2-phosphonic acid butane-1, 2, 4 -Tricarboxylic acid (PBTC) is mixed and made .
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Determination of chloramphenicol, thiamphenicol and florfenicol residues in puffer fish, eels and grilled eels-instruments and equipment
Time of Update: 2021-11-05
60mL ammonia water, wash the homogenizer blade for 10s, and transfer the washing solution to the first centrifuge tube , Stir the residue with a glass rod, vortex and shake for 1 min, ultrasonic shake for 5 min, centrifuge at 4000 r/min for 5 min, combine the supernatant into a 50 mL colorimetric tube, and dilute the volume of ethyl acetate to 50.
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Determination method of steroid anabolic hormone drug residue analysis technology (4
Time of Update: 2021-09-20
established a flow injection chemiluminescence analysis method for detecting methyltestosterone in fish .
Figure 8-6 Schematic diagram of flow injection chemiluminescence device P: peristaltic pump; F: flow cell; V: injection valve: W: waste liquid a: sample: b: Na 2 S 2 O 3 ; solution: c: H 2 SO 4 solution: d: KMnO 4 solution
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Production process and product use of N-nitroso diphenylamine
Time of Update: 2021-08-28
Cool to 15°C, add 40% sodium nitrite ethanol solution while stirring .
Security measures(1) Diphenylamine used in production is highly toxic and can be absorbed through the skin and cause poisoning .
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my country's first self-operated deep-water oil field group was put into production
Time of Update: 2021-08-27
2 million cubic meters, which is currently the largest new oil field group developed in the South China Sea.
The completion and commissioning of the Liuhua 16-2 oilfield group has laid a solid foundation for the oilfields in the eastern South China Sea to achieve the goal of 2025 million tons of production by 2025 .
