Extension Coil Spring (SWP-A)

Brand :
SHOWA SPRING
Caution
Product Description
[Features]
· Standardized tension coil springs using cold-molding piano wire of diameter ø0.32 mm to ø2.3 mm and stainless steel wire of diameter ø0.32 mm to ø2.3 mm.
· Piano wire: 180°C to 250°C low temperature annealing, black dyed surface.
· Stainless steel wire for spring: 250°C to 450°C low temperature annealing, but surface treatment is not treated.