Leather scientists have done a lot of research works for clean production in leather making.

为探索制革行业的清洁化，制革行业的科技工作者做了大量的工作。

youdao

Leather scientists have done a lot of research works for clean production in leather making.

为探索制革行业的清洁化，制革行业的科技工作者做了大量的工作。

youdao