JSC 'SPRING FACTORY' Bulgaria
Since 1974. ISO-9001.
Extension Springs (Tension Springs)
We manufacture high-quality helical extension springs (tension springs) from premium materials to match custom B2B technical requirements:
Steel spring wire diameter: 0.15 - 6.50 mm
Spring wire materials: Carbon steel EN 10270-1; Stainless steel EN 10270-3.
End loops & hooks: Half, German, English, extended, side hooks, and other custom end configurations.
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