Cgshop-Compressed Spring 0.4mm Compression Spring Outer Diameter 3mm to 12mm Stainless Steel Small Compression Spring, 10-20pcs, Good Elasticity and More Durable(25mm,12mm 10pcs) 35mm 4mm 20pcs
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.