The slogan of these dog leashes is: Let dogs enjoy walking more freely. I don't know what happened to some dog parents in recent years. They can be brainwashed by such advertisements. Please, walking dogs is not walking people!…
The purchasing pace at the demand end of the international thermal coal market continues to slow down and the international thermal coal price continues to decline. Prices for thermal coal at major international ports continued to fall last week as b…
Manganese Dioxide Pulver Overview Manganese dioxide This inorganic compound has the chemical formula MnO2. It is found in nature as pyrolusite. Physical characteristics: Black orthorhombic or amorphous crystals, and black powder. It is inso...…
Using amorphous boron powder and aluminum powder as raw materials, powder metallurgy is used to prepare AlB12 powder. X-ray diffractometer and scanning electron microscope were used to determine the product's phase composition, relative content, and ...…
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