• 1. Draught Spring: 拉力弹簧 | 拉伸弹簧
• 2. spring draught index: 春旱指数

• 1.Suitable for producing double twist spring, straight spring, pagoda-shaped draught spring, rectangular spring, wires with various shapes, volute spring and other special-shaped springs.
  用于生产双扭簧、形簧、塔拉簧、形簧、材成形、皮涡簧及各种花式簧、形簧等。
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