20 PCS 8 x 20mm 3D Compression Springs, 3D Printer Springs, for Creality CR-10 10S S4 Ender 3 Motherboard Bottom Connect Leveling, 8 x 20mm Die Springs, Yellow. Functions: these heating bed springs commonly apply to hold 3D printer bed, and are primarily applied in die machinery, also suitable for a variety of other applications.
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