短语词组短語cylindrical helical torsion spring 圓柱螺鏇扭轉彈簧Cylindrical E helical torsion spring 圓柱螺鏇扭轉彈簧cylindroid helical -coil torsion spring 圓柱螺鏇扭轉彈簧;圓柱螺鏇改變彈簧 返回 helical torsion spring