日标棕色模具弹簧TB系列 50CrVA合金钢极重荷重JIS规格强力矩形弹簧

棕色极重荷重系列，最大压缩量20%。专为极端重载研发，50CrVA材质提供超强单位推力。抗松弛性能优异，适用于重型模具与离合器，海量现货。

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颜色	红色, 蓝色, 绿色
尺寸	S, M, L

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