The nailing process uses the diamond needle of the nailing machine to rotate the blow on the metal surface, and nails out irregular and shiny concave and convex surface to form the coarse sand surface effect.
Features: The metal surface of the frame under the nail sand process will form a unique sense of coarse sand particles, so that the refraction surface is more, each convex and concave surface is a reflection point, which can form a bright shining effect of the sky

Features: The metal surface of the frame under the nail sand process will form a unique sense of coarse sand particles, so that the refraction surface is more, each convex and concave surface is a reflection point, which can form a bright shining effect of the sky.