... control 2.Good hardness and flexibility. 3.OEM & ODM provide. Switch spring for cookerDetailed description: 1) Spring Wire Diameter: 0.08 ... ) Spring Type: Compression spring. 3) Main material: High carbon steel, spring steel, stainless steel, bronze, alloy4) Advantage: Good hardness, resistance, durable. 5) ... packing:polybag B. outer packing: Several polybag in one carton. switch spring for cooker