benders

I borrowed a bender from the garage to shape the steel rod.

我从车库借了一个弯管机来弯曲钢棒。

The metal shop has several benders for different pipe diameters.

金属车间有几个不同管径的弯管机。

You need a bender to make the curved railings for the staircase.

你需要一个弯管机来制作楼梯的弯曲扶手。