Cgshop-Compressed Spring Wire Diameter 3.5 Mm Outer Diameter 20-30 Mm, Length 20-50mm Shock Absorption Return Hole with Pressure Return Spring Good Elasticity and More Durable(20mm (5Pcs),23mm)
The spring is made of rust-resistant steel, which prevents rust in humid environments and has strong acid resistance, antioxidant properties, and corrosion resistance.
It is widely used for the repair of fountain pens, household appliances, electric motors, factory machinery, lawn mowers, and the like.