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小敏测试128
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5xiaominrenminbiAAABBB
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PP Yarn L5E89(Hengli)
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Guibao Brand Heavy Calcium Carbonate 4000 Mesh
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Xinweiye Heavy Calcium Carbonate 1500 Mesh
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Rutile titanium dioxide TGR-613
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High whiteness heavy 800 mesh CACO3
DwightHolt
He is an encyclopedia author specializing in the field of chemical engineering. He has in-depth research and understanding of various plastic materials, especially for polyethylene, a common and important polymer compound, which is familiar with its properties, characteristics and application range - from basic knowledge to advanced application skills can benefit people!