Ntuj ester insulating kua yog biodegradable thiab carbon nruab nrab. Nws tuaj yeem txuas lub neej ntawm cov ntaub ntawv rwb thaiv tsev, nce lub peev xwm thauj khoom thiab txhim kho hluav taws kev nyab xeeb, thaum txo kev cuam tshuam ib puag ncig, yog li pab txhim kho kev ntseeg tau thiab hloov pauv ntawm po ...
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