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Member for
4 ปี 1 เดือนAge: 13+
Level: 8
Language: German
(de)
ไอดี: 92445
11/04/2020
Country code: DE
Country: Germany
Main content: Redoxreaktionen (1071837)
From worksheet author:
Herstellung von Stahl
Other contents:
Stahlherstellung
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