0 New HSK word(s):

0 Old HSK word(s):

矿渣棉 [kuang4 zha1 mian2]

Schlackenwolle (S)
撇渣 [pie1 zha1]

abschlacken (Gießerei) (S, Tech)
渣饼 [zha1 bing3]

Schlackenkuchen