The simple vibration-proof hand knob provides progressivespring thrust.
简单的防振动防手旋钮提供渐进式弹簧推力。
2
In order to acquire the local bending spring-back accuracy of sheet metal strip of a progressive die design, the thesis aims to build ironing depth simulation model in a bending deformation zone.
为解决级进模具使用的带料上的局部折弯回弹的精度问题，本文建立了折弯变形区的过压量模拟模型。
3
Small small-sized screw series, progressive, turning a series screw series, pressure rivet series, stamping nut series, spring series.