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coal tar asphalt
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Black Powder Sulfonated Asphalt Bitumen For Drilling Fluid System Product Description Powder Bitumen is similar to hard petroleum asphalt and is often ...
2024-12-09 18:23:38
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... materials, as well as for production of anode paste and plastics, for coal and graphitized products,for coal-graphite buildig materials ,for ...
2024-12-09 18:23:38
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... Science and Technology (first-grade subject); Coal Utilization and Processing (Second grade subject); Coal reversion (third grade subject). ...
2024-12-09 18:23:38
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...Coal Tar Pitch in Large Quantity 1.Description: Coal Tar Pitch is a kind of black block with brittleness and odor , which is lustrous at normal ...
2024-12-09 18:23:38
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