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2012年12月15日,由中国五环工程有限公司总承包的全球装置规模最大的瓮福达州磷硫化工基地15万t/a磷酸净化装置一次投料试车成功并生产出合格产品。
On December 15, 2012, the 150,000 t / a phosphoric acid purification plant of the largest plant in the world that is wholly contracted by China’s Fifth Ring Engineering Co., Ltd. was successfully commissioned and a qualified product was produced.