... brass 3) Equipment : CNC,Common lathe 4)Certifications: ISO9001 Forged Flange 1.material:aluminum, copper and steel (15#,20#,25#,30 ... Cold forging, forming and heading parts with precision machining Cold Forged - automotive components & motors parts Loudspeaker metal parts: ... parts Headed rivet, plug bolt and pins Cold forged Carbon Steel Flange Shafts & special-headed parts Motorcycle cold forging ...