IsiKhokelo esiPheleleyo kwizihluzi ze-3m zokuphefumla ngu-Chao MeiAs njengomvelisi ohamba phambili kwishishini le-PPE, i-Jiande Chaomei Daily Chemicals Co., Ltd. sele ivelisa iimaski ezikumgangatho ophezulu ukusukela ngo-1990. Phakathi kweemveliso zabo ezininzi, izihluzi zabo ze-3M zokuphefumla. .
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