1,Preferred raw material: It is made of high-quality 65Mn spring steel, which is not afraid of bending and has good toughness.
2,Excellent elasticity: high plasticity, good fatigue resistance, uniform force, good firmness, and good texture.
3,Fine workmanship: It is made with a high-precision spring machine. After multiple processes, each production process is strictly controlled, with small tolerances, and a smooth surface without burrs.
4,Environmental protection and health: low content of harmful elements, low content of harmful elements such as S, N, P and inclusions.
Explanation of size :
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Product Photos:
Note: Please use the correct method to measure the product, be sure to use the vernier card to measure accurately, using a ruler or student ruler will cause large errors.
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