... .alloy steel (light) 4.CNC machining 5.China Bicycle Parts , alloy steel casting,CNC machining,China 1.bicycle parts2. ... casting3.alloy steel (light)4.CNC machining5.China 1. Material: alloy steel.2. Standard: ... : 3mm - 3000mm5. Moulding Process:casting. Machining: Machining center, CNC, Lathe, Milling machine, drilling etc. Surface : painting, polishing, heat treatment, plating ...