NEN ISO 11891 : 2012
Current
The latest, up-to-date edition.
HOT FORMED HELICAL COMPRESSION SPRINGS - TECHNICAL SPECIFICATIONS
12-01-2013
Defines the materials, shapes, spring characteristics, tolerances, manufacturing requirements and test methods for common helical compression springs, which are made from hot coiled round section steel bar, and then quenched and tempered (hereinafter simply "springs").
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