Product Description:
Material: Spring steel
Outer diameter:16mm
Inner diameter:8mm
Length:20mm~80mm
Size explain: outer diameter * inner diameter * length
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Features:
Made of high-quality spring steel, precision machining, good elasticity, high rigidity and durability.
yellow spring (Small load): can be compressed to 42% of the total length
blue spring (light load): can be compressed to 52% of the total length
Red spring (medium load): can be compressed to 62% of the total length
Green spring (Heavy Load): can be compressed to 72% of the total length
Brown spring (Very Heavy Load): can be compressed to 76% of the total length
The surface is reinforced and has a strong structure and long service life.
The shape is rectangular, and the whole is subjected to strong pressure treatment, which is not easy to be deformed or broken.