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coal tar pitch roof repair
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... tar pitch is an amorphous residue produced by the distillation or heat treatment of coal tar, which is a by-product of coal when it is carbonized ...
2024-12-09 18:23:38
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...Coal Tar pitch used in Graphite Industries 1.Description: Coal Tar Pitch is a kind of black block with brittleness and odor , which is lustrous at ...
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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