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小敏测试128
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5xiaominrenminbiAAABBB
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Y500 disposable plastic 500ml bowl food container
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YvesSpender
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!