Extension of the industrial chain of a stainless steel industry is a certain demand.

不锈钢加工企业的产业链延伸是市场必然的需求。

youdao

The third is answering how to extend the industrial chain, which kind of way adopts, what kind of pattern, to achieve any degree in extension of the industrial chain;

第三个问题是如何延伸煤炭产业链的问题，即采取哪种 路径、何种模式、达到什么程度去延伸产业链；

youdao