This series of product specifications, product quality and meet EU environmental standards (products with SGS environmental reports), the conventional spot size with 305MM, 400MM and other width and thickness are produced from 0.1MM-1.5MM thickness tolerances -0.01 within the conventional case can be divided into S, TS, H, 1/2H, EH, SH, and other states. The flexibility of such products, Ting ductility, fatigue resistance, corrosion resistance and especially good, more for the aerospace, electronics, electrical high-precision parts.