Cgshop-Compressed Spring Wire Diameter 3.0mm Outer Diameter: 16-22mm Length: 20-50mm 65MN Steel Compression Marbles, Shock Absorption Return Spring Good Elasticity and More Durable(20mm-2Pcs,17mm)
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.