描述
Size: 18*50mm
In stock: 18*50*7 links, 18*50*9 links (Other materials and lengths can be customized.)
Structure: Welded Chain
Surface: Black Painted, Self Color, Carburized
Material: High-Quality Alloy Steel：20Mn2，25MnV
Standard：GB/T 12718-2009
Sample: Available
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