一个常见的U型管道3D图纸，包含igs，stp，stl多种格式。 Clamping experiment-Jeroen Vanloffelt-18_03_13.igs(7.91MB)，Clamping experiment-Jeroen Vanloffelt-18_03_13.stl(45.75MB)，Clamping experiment-Jeroen Vanloffelt-18_03_13.stp(4.98MB)