Profile stretch-bending is widely used in automobile and aerocraft industry.

型材拉伸弯曲工艺在汽车、航空工业等领域中应用极为广泛。

youdao

Profile stretch-bending is widely used in automobile and aerocraft industry.

型材拉伸弯曲工艺在汽车、航空工业等领域中应用极为广泛。

youdao