chrome-free tanning agent
常見(jiàn)例句
- In addition, chromium resource in China is very limit, so the research of chrome-free and less-chrome tanning agent are very imperative.
此外我國(guó)的鉻資源也極爲(wèi)有限，因此研究少鉻和無(wú)鉻鞣劑勢(shì)在必行。 返回 chrome-free tanning agent