Antrader Compression Springs, 6pcs Green Heavy Load Press Compression Mould Die Spring for 3D Printer, 20mm OD, 35mm Long

["Compression Spring Model: TH 20 x 35mm; Color: Green; Loading Grade: Heavy Load","Hole Diameter (Outer Diameter) : 20mm/ 0.79\"; Rod Diameter (Inner Diameter) : 10mm/ 0.39\"; Free Length (L): 35mm/ 1.38\"","Made of high strength spring steel, painted on the surface,has good wear-resistant and corrosion resistance;different colors represent different loads.","Rectangular section, closed-end design. Die springs are primarily used in die machinery.Package Content: 6 x Printer Die Spring","These mechanical mold springs are suitable for stamping die, metal die-casting die, plastic die, elastic motion precision machinery, automotive and other fields."]