Umbukiso we-12th International Building and Decoration Materials Expo obanjelwe eKunming, eYunnan kusukela ngoJulayi 29 kuya ku-31, 2021. Lo mbukiso uhlukaniswe ngehholo lobuchwepheshe bamanzi edolobha, ihholo lamandla aluhlaza, ihholo lezinto ezingangeni manzi nge-polymer, ihholo lokwakha isayensi nobuchwepheshe, iminyango nehholo. .
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