Pa Disembala 15, 2017, Wuxi Chengyide Environmental Protection Technology Co., Ltd. idalandira satifiketi ya GRS (Global Recycling Standard), yomwe ikuwonetsa kuti ulusi wamankhwala wopangidwa ndi ChengYide woteteza chilengedwe wakhala "kupanga zobiriwira" padziko lonse lapansi, oyenerera plasti. ..
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