牵引和挤压（traction and approximation ）牵引：增大关节间的间隙作用激活关节感受器；关节周围的肌群被拉长，可引起肌肉的牵张反射；增加血液循环，从而到达缓解疼痛的...
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它可拥有一个连续挤压的模式，因为有柱锭焊接技术，还有牵引系统和其它自动化的挤压配套设备。
The continuous extrusion model with welding dies functions well with puller systems and other automated handling equipment.
通过改善密封钢丝绳的运行条件，有效地减少牵引索附加压力，减少挤压断丝和磨损，可提高钢丝绳的寿命。
Improving function condition of locked coil wire rope can decrease additive pressure effectively, reduce break wire by extrusion and wear, and increase the life of steel wire rope.
钢芯钢丝绳的主要用途：各种起重、提升和牵引设备，金属绳芯适用于负荷、受热和受挤压条件下，例如：电铲。
Main Appplications:Various eqmuipment for derricking, lifting and drawing; the rope with wire core can be used under the shock load, heated and squeezed conditions such as electric shares.
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