"The part tractor" is suitable are operated for the patetows the instrument, mainly is suitable for the nerve root cervical vertebrasickness. This through air operated tows may cause the base cervical vertebra reduction activity, relieves the muscle convulsion, increases the myo-gap and cervical vertebra gap the hole, reduces to the nerve root, the arteriavertebralis oppression, thus plays alleviates the clinical symptom therole. This product volume small, light, the force of traction is big, easy to operate, good performance, effective safety. Company: Zhangjiagang Rongchang Machinery Manufacture Co., Ltd.