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| Patented
drawn |
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| | Qualities | | | ||
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| Surfaces |
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| | Catchweight coils | | | ||
| | Divided coils | | | ||
| | S17-spool | | | ||
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| Z2-
+ Z3-spool |
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| Z3-
+ Z4-spool |
| | ||
| | Spools | | | ||
| | Special products | | | ||
| | Oil
tempered | spring steel wire |
| | |
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| | Steel
wire for | musical | instruments |
| | | |
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