A torpedo-shaped tungsten alloy dart barrel features front slim waist with rear gradual expansion taper, center of gravity shifted forward to index finger first joint, providing front-weighted control and aerodynamic optimization. Tungsten alloy density densifies mass at slim waist, binder phase front gradient ensuring continuous strength. In grip, front slim waist fits fingertips, rear expansion supports palm root, pressure forward-shifted, two-three finger grip precise. During throw, torpedo taper guides airflow, release inertia front-pull, flight convergent, board entry point direction accurate. Processing mold presetting variable diameter, sintering gradient rate cooling, CNC layer-by-layer peeling contour, surface femtosecond laser spiral grooves, coating physical vapor diamond-like carbon film. In application, torpedo-shaped suits advanced front-weighted explosive and long-distance scoring, internal weight-reduction cavities front density accelerating inertia. Compared to bomb, torpedo drag lowest, suitable for rapid successive; compared to polygon, streamline superior. Environmental taper precision high, scraps complete. Personalization contour scanning adjusting slim waist arc, matching finger shape. This torpedo-shaped represents cutting-edge structure, advancing aerodynamic innovation.
