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it is made of polylactide（PLA）.PLA uses annually renewable plant resources (corn) as raw material, which is fermented and distillated to produce lactic acid.
Followed by the process of dehydration polymerization, high-temp depolymerization, refining and finally polymerization, lactic acid is then transformed to PLA. Its products can be degraded to carbon dioxide and water by microorganisms in the soil after use and do no harm to the environment .
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