Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:company
|
| gptkbp:activePeriod |
19th century
20th century |
| gptkbp:country |
gptkb:United_Kingdom
|
| gptkbp:foundedBy |
gptkb:Robert_Hadfield
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hadfield Steel Company
|
| gptkbp:industry |
gptkb:steel
|
| gptkbp:location |
gptkb:Sheffield
|
| gptkbp:notableFor |
production of manganese steel
|
| gptkbp:product |
aluminum alloy
manganese steel |
| gptkbp:bfsParent |
gptkb:US_M1917_helmet
|
| gptkbp:bfsLayer |
7
|