A smooth surface tungsten alloy dart barrel features electrochemical polishing or super-precision turning forming mirror finish, providing lowest friction and highest slippery release. Tungsten alloy hardness ensures mirror no scratches, binder phase flat layer blocking micro-protrusions. In grip, smooth surface fits fingertip, pressure sliding uniform, suitable light-grip low-tension, wrist most relaxed. During throw, mirror reduces resistance, release slippery no lag, flight drag lowest suitable extreme-speed successive. Processing multi-stage polishing from Ra0.05μm, physical vapor thin film optional hydrophobic enhancement, water contact angle 120° achieving ultimate self-cleaning. In application, smooth barrels suit professional dry high-speed styles and fingertip precision players, front mirror acceleration, mid micro-texture transition, rear thick film fatigue-resistant. Internal low-resistance cavities smooth zone density balanced reinforcing speed. Compared to ring groove, smooth low-resistance enhancing flow; compared to coating, mirror reflection providing visual feedback. Environmental polishing liquid filtration cycle, no coating stripping waste. Personalization zero-friction preference custom reflectivity, ensuring grip like mirror rail. This smooth surface defines slippery speed ultimate, advancing low-resistance surface revolution.
