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Niebuell (Niebüll) is hosting four of the largest companies in Germany (Deutschland). | ||
| City: | Niebüll (See Map below) | |
| Country: | Germany (Deutschland) | |
| Largest companies: | ||
| City Id: | 9326 | |
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Niebüll in Germany (Deutschland) 
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(#)The daily puzzle:
What does '*****' mean in the following text?
"A ***** material is one that retains its strength at high temperatures. ASTM C71 defines refractories as "non-metallic materials having those chemical and physical properties that make them applicable for structures, or as components of systems, that are exposed to environments above 1,000 °F (811 K; 538 °C)". ***** materials are used in linings for furnaces, kilns, incinerators and reactors. They are also used to make crucibles."
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