We attented the medtec China 2019 exhibition on sep. 25-27 in Shanghai.We show our main 产品：波形弹簧和螺旋挡圈。
We attented the medtec China 2019 exhibition on sep. 25-27 in Shanghai.We show our main 产品：波形弹簧和螺旋挡圈。
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