Features 1、Mold die springs are primarily used in die machinery. 2、High temperature resistance, high rigidity and long service life. 3、Its inner diameter is half of outer diameter in general. 4、For die springs, blue color represents that the load grade is light load. 5、Widely used in stamping die, metal die-casting die, plastic mold and other elastic movement precision machinery equipment, automotive and other fields. Specification Features: Mold die springs are primarily used in die machinery. High temperature resistance, high rigidity and long service life. Its inner diameter is half of outer diameter in general. For die springs, blue color represents that the load grade is light load. Widely used in stamping die, metal die-casting die, plastic mold and other elastic movement precision machinery equipment, automotive and other fields. Specification: Material: 65MN Steel Color: Blue Blue (TL) light load Free Height * 48% Outer Diameter: 10mm Inner Diameter: 5mm Package List: 2 * Mould Die Spring Package List