The invention adopts melt processing, has simple process, and can realize large-scale industrial production.

本发明采用熔融加工，加工工艺简单，可实施大规模工业化生产。

youdao

The invention adopts melt processing, has simple process, and can realize large-scale industrial production.

本发明采用熔融加工，加工工艺简单，可实施大规模工业化生产。

youdao