Cgshop-Compressed Spring Wire Diameter 0.4mm 304 Stainless Steel Compression Spring Return Spring Release Pressure Spring Y-Type, 10Pcs, Good Elasticity and More Durable(15mm Length (20Pcs),3mm)
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.