Features: _x000D_ 1. Brand new and high quality _x000D_ 2. Made of high quality material, it has large rigidity _x000D_ 3. Small body and it has good elasticity. _x000D_ 4. High accuracy and it has beautiful appearance _x000D_ 5. Widely used in stamping dies, metal die-casting dies, plastic molds and other elastic motion accuracy mechanical equipment, automotive fields, etc. _x000D_ _x000D_ Specification: _x000D_ Condition: Brand New _x000D_ Material: 65MN Steel _x000D_ Yellow (TF) Less load _x000D_ Free height *58% _x000D_ Optional Style: TF8*20mm, TF8*30mm, TF8*40mm, TF8*50mm, TF8*60mm, TF8*70mm _x000D_ _x000D_ Package List: _x000D_ 2 * Mold Spring _x000D_ _x000D_ Note: _x000D_ 1. Example of naming rules: TF8*20mm (yellow outer diameter: 8mm, length: 20mm) inner diameter is half of the outer diameter size, generally not marked _x000D_ 2. The surface is painted different colors to distinguish the compression ratio