材质：弹簧
所有零件在出厂前都经过严格的质量控制
高品质，价格合理，我们根据质量和数量报价。
快速交货时间：存款后25-30天，实际上取决于数量。

Material: spring
All parts are under rigid quality control before shipment
High quality and reasonable price, we quote the price according to the quality and quantity.
Quick delivery time: 25-30 days after deposit, actually depends on the quantity.