... copper, aluminum, iron, stainless steel and so onPCB Pin / machine pin / Connector pin details : MaterialBrass, phosphor copper, beryllium copper ... plating Gold or Sn over Ni Process machineAuto-lathes ,we have 16auto-lathes for machining the pinOther machineDrilling machine, milling ... pin photoSolder pin for wire photo PCB pin ,machine pin,connector pin connector pin / Machine pins gold plated