石化产品市场周期交替规律与投资时机的把握

刘媛

Study on periodic alternation rules of petrochemical products market as well as grasping investment opportunity

LIU Yuan

现代化工 . 2019, (5): 1 -4 . DOI: 10.16606/j.cnki.issn0253-4320.2019.05.001