This paper introduces a patent, which can make the coal fly ash and gangue piled up as the renewable resources, and turn out the tiny-bead products with high attached value.

本文介绍了一项专利技术，可以将堆积如山的粉煤灰、煤矸石作为再生资源， 生产高附加值系列微珠产品。

youdao

This paper introduces a patent, which can make the coal fly ash and gangue piled up as the renewable resources, and turn out the tiny-bead products with high attached value.

本文介绍了一项专利技术，可以将堆积如山的粉煤灰、煤矸石作为再生资源， 生产高附加值系列微珠产品。

youdao