-Ti6Al4V material with Ti+HA dual coating (225ym pure titanium coating + 70um hydroxyapatite coating per side) ensures long-term bone ingrowth
-Proximal rectangular cross-section resists axial and rotational stress, ensuring initial stability
-Lateral shoulder cutting design makes implantation smoother
-Proximal stepped design optimizes stress distribution, converting ring shear stress to axial compressive stress, improving axial stability
-Distal vertical and horizontal grooves provide rotational and axial stability