In this paper, new type of tanning agents for free-chrome and semi-chrome tannage were studied.

主要研究了几种新型无铬鞣剂的鞣性及其在无铬、少铬鞣中的应用。

youdao

In this paper, new type of tanning agents for free-chrome and semi-chrome tannage were studied.

主要研究了几种新型无铬鞣剂的鞣性及其在无铬、少铬鞣中的应用。

youdao