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Amorphous graphite is usually formed by contact metamorphism of anthracite coal seams with metamorphic agents (e.g. tectonic stress, magma, etc.).…
Since the beginning of this year, people around the world have felt the pressure of rising prices. Not only the rise in oil prices but also different industries have seen soaring prices. According to the latest data, from August 2021 to the present,…
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