... sgroup.com 1)Size: Different size, according to customer's drawing.2) Material: carbon steel, alloy steel, stainless steel, ... welding, punching, drilling, turning, milling, grinding, rolling, stamping, cold drawing, bending, spinning, forging, etc.5) Precision: Turning and Milling: +/- ... you at once we receive your valued enquiries with detail specification. Your urgent order will be the top priority ...