Ball and socket joints let your arm bones rotate at the shoulders and also allow the wheels of your car to be turned through the steering column.
球状关节是的人类上肢骨骼可以在肩部自由旋转，这也是汽车车轮在转向柱的操控下转向的关键所在。
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Specially manufacture automotive Chassis fittings, Steering parts, Ball joint, Tie rod end, Side rod Assy, Rock and Stabilizer link, Control arm, Idler arm, Pitman arm, Center link cross rod.