竹永盛汽門彈簧座之材質使用鋼鐵或鈦合金。每一生產材料皆經過適當的熱處裡或表面處裡將彈簧座的強度及使用生命達到最大值。彈簧座的生產過程使用CNC電腦車床一體成型加工或是冷鍛方式做成，確保產品尺寸的精密度。

Valve Spring Retainer
The material of “Valve Spring Retainer” is Steel or Titanium.
Each material is through proper heat or surface treatment to maximize the strength and life of retainers.

 “Valve Spring Retainers” are made using CNC lathe or cold forging seamless technology to control tolerance and ensure the precision of the dimension of the products.

VALVE SPRING RETAINER

Material: