Txog PLA PLA, tseem hu ua polylactide, yog polyester polymerized los ntawm lactic acid.Polylactic acid muaj biodegradability zoo heev, compatibility thiab nqus.Nws yog non-toxic, non-rritating hluavtaws polymer khoom.Nws cov khoom siv raw yog lactic acid, uas yog muab los ntawm fermentat ...
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