Report - S160 g/cm3 Poly ( L-lactic acid ) ± 0.05 55-60 2-8 50-60 GB/T … · 2019. 5. 21. · S160 g/cm3 Poly ( L-lactic acid ) ± 0.05 55-60 2-8 50-60 GB/T 1033.1-2008 GB/T 19466.3-2004

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