Horganyzott acél, szimmetrikus, 90°-os T-idom
Egal T idom
| Méret | NA100, NA125, NA150, NA160, NA180, NA200, NA250, NA315, NA350/355, NA400, NA450, NA500, NA80 |
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| Méret | NA100, NA125, NA150, NA160, NA180, NA200, NA250, NA315, NA350/355, NA400, NA450, NA500, NA80 |
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