The Brief Analysis of Marketing : The chloroethylene is the main material for the production of koroseal and its market supply and demand change along with the development of chlorine.
乙烯是生产聚乙稀树脂的主要原料,它的市场供需随聚乙稀的发展而变化。
The Brief Analysis of Marketing : The chloroethylene is the main material for the production of koroseal and its market supply and demand change along with the development of chlorine.
乙烯是生产聚乙稀树脂的主要原料,它的市场供需随聚乙稀的发展而变化。
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