The Annual petroleum and Petrochemical Safety Production Event
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天津亨旺机械有限公司组织参观cippe2019石油展纪念照片
天津亨旺机械有限公司，常务副总、总工程师带领公司公司各部门18人参观展会。
In petroleum, chemical, coal mine, metallurgy and many other industries, usually there are flammable and explosive dust dangerous places. In recent years. Read More >
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