The larger the company is the production of synthetic ammonia and nitrogen fertilizer businesses.

公司是国内较大的合成氨和氮肥生产企业之一.

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In this paper , the production process of synthetic ammonia medium pressure was studied.

以中压合成两级分氨流程为研究对象, 给出了合成氨工序的危险性分析方法.

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Nationalizing of GV quipment for 300 thousands ton synthetic ammonia for Guang chou petroleum factory.

6.广州石化总厂30万吨合成氨装置GV再沸器国产化生产.

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