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In early August, the price of ferrous metal products in China's circulation field rose across the board
Time of Update: 2022-11-28
By increase from large to small:The market price of hot-rolled ordinary coil (4.
By increase from large to small:The market price of hot-rolled ordinary coil (4.
By increase from large to small:The market price of hot-rolled ordinary coil (4.
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Daily Review of Epichlorohydrin: Narrow Range Oscillation
Time of Update: 2021-04-21
On the last trading day (December 24), the mainstream transaction price in East China in the mainstream market began to form a range of 13,500-13,700 yuan/ton, with an increase of 200 yuan/ton.
According to market experts from China Epoxy Industry Association (www.
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Optimisation of liquid fermentation media for side spores cytobacteria
Time of Update: 2020-06-21
, experimental purposes 1, master the principle of fermentation medium preparation, 2, familiar with the method of optimizing fermentation medium: orthogonal test, uniform design, response surface me
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Pre-treatment requirements for powder spraying and paint
Time of Update: 2020-03-04
" compared with the paint film, powder coating film has more advantages, such as small environmental pollution, membrane hard, good toughness, strong binding force with the substrate, high corrosion
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Drying method equipment small drying oven operation
Time of Update: 2010-03-26
（1） Atmospheric pressure drying: 1 The drying time is long, which is easy to cause the damage of components, and the dried products are difficult to be crushed In order to speed up the drying, it is n
