The three most commonly used method of manufacturing FRP are Cross-winding process, continuous winding process and the centrifugal casting process.
国际上现有三种制造夹砂压力管的工艺方法。它们分别是，交叉缠绕工艺、连续缠绕工艺和离心浇铸工艺。
2
Visitors must cross through several checkpoints along a winding road to reach the hotel.
访客必须沿着弯曲的道路通过好几个安检，才能到达酒店。
3
Based on existing inlay technology, for each winding, the cross layout of the long and the short was improved, resulting in copper wire saving and shorter inlay time.