Nakong ea ketelo e tloaelehileng ea bareki, mbuhua, mookameli oa thekiso ea indasteri ea lik'hemik'hale ea Haiyuan, o fumane hore Shandong Xinhe Chengjing Chemical Co., Ltd. e ka sebelisa sehlahisoa sa rona 1,4 butynediol ho nkela lihlahisoa tse sebelisoang sebaka.Haeba re sebelisa butynediol ea rona ...
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