日本三级片网站中文字幕,国产女主播免费观看视频,国产sm女同视频无删减,日韩精品久久人人躁人人

Femoral Prothesis Stem (Bone Cement Type)

Product Introduction：1. Patients with old fracture of the femoral neck, pain from destruction of the femoral head or acetabulum, resulting in impairment of joint function; 2. Patients with avascular necrosis of the femoral head, collapse and deformation of the femoral head and destruction of the acetabulum.