The acid open hearth furnace upto 1920
schema:identifier →
<na3555da758c44abbb8dd0056af643228b3>
|
schema:property |
"NL-AmRIJ" |
| schema:value | "254765" |
schema:about →
<na3555da758c44abbb8dd0056af643228b1>
|
schema:alternate |
"1855-1920" |
schema:about →
<na3555da758c44abbb8dd0056af643228b2>
|
schema:alternate |
"Open-hearth process" |