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螺旋弹簧的手动式制做方法及临床应用石油天然气总公司管道局医院康慧鸣北京市口腔医院正畸科吴勉人应用材料：１．９０ｍｍ×６０ｍｍ×３ｍｍ矩形有机玻璃一快。２．１２０ｍｍ×不同内径圆管若干根（１．０、０．９、０．８、０．６ｍｍ）３．８０ｍｍ×０．５ｍｍ圆管...
Hand-made spiral spring manufacturing methods and clinical applications Oil and Gas Company Pipeline Hospital Kang Hui-ming Beijing Stomatological Hospital Orthodontics Wu Mianren Application: 1.90mm × 60mm × 3mm rectangular plexiglass fast. 2.120mm × a number of different diameter tube (1.0,0.9,0.8,0.6 mm) 3.80mm × 0.5mm tube ...