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Schlackenstein m -(e)s, -e
construct.	scoria brick, slag brick
mech.eng., construct.	breeze block
met.	dam; baffle stone
met., construct.	slag brick
Schlackensteine m
gen.	clinker stone; slag stone
construct.	slag bricks

Schlackenstein: 4 phrases in 2 subjects

Construction	2
Metallurgy	2