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Gradually reduce enterprise electricity bills and support enterprise resumption of work
Coordinate epidemic prevention and economic and social development, support enterprises to resume work and production, overcome difficulties, On February 22nd, the National Development and Reform Commission issued a notice on gradually reducing enterprise electricity bills and supporting enterprise resumption of production. Specifically, from February 1 to June 30, 2020, power grid enterprises will apply conventional industrial, commercial, and other electricity prices to power users, as well as large industrial electricity prices, except for high energy consuming industries. 95% of household electricity prices will be calculated uniformly.
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The ecological storm has not yet ended, and the price of magnesia has fallen. What are the geometric reasons behind it?
Liaoning Province has the largest reserves of magnesium ore resources in the country, with magnesium refractory materials covering steel. High temperature furnace building materials account for 60% of the domestic market and 40% of the international market. However, since 2017, the environmental storm in Liaoning has never stopped, causing sustained fluctuations in the prices of durable materials such as magnesia, leading to a recent decline in magnesia prices? What will the price of magnesium be in the future?
Why is the exterior wall made of insulation material always on fire
At present, insulation materials for building exterior walls are one of the important choices for indoor decoration materials, as they often cause fires. For example, the fire in the CCTV building was caused by the use of flame retardants made of organic insulation materials. Due to incomplete combustion and pyrolysis of refractory materials, more smoke and toxic gases are generated, and the smoke inhaled by most people in the event of a fire can suffocate the toxic gases that cause death.
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How does the fire resistance of bricks affect it
The type and essence of the main crystalline phase, as well as the fusion form between the main crystalline phase and the sub crystalline phase.The essence and number of matrices, as well as the relationship between the main phase or main phase and sub crystalline phase, as well as the diffusion form.
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Factors affecting the corrosion resistance of refractory bricks and methods for improving their corrosion resistance
Corrosion resistance refers to the ability of refractory bricks to resist the erosion and erosion of various corrosive media at high temperatures. These corrosive media include various types of slag (blast furnace, electric furnace, converter, refining furnace, non-ferrous metal furnace, calciner, reaction furnace), fuel, ash, volatile dust, debris, lime, cement clinker, alumina clinker, garbage, liquid molten metal, glass melt, acid alkali, electrolyte, etc, Various gases (gas, CO, sulfur, zinc, and alkaline vapor).
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