... part 280sets cnc machines Process: milling,grinding,drilling,boring. custom made steel part by oem dra Materials : Iron; Stainless steel ... 0.001mm , equipped with 280 sets CNC Machines CMM Inspection machine Finishes : Heat treatment ; Plating ( Zinc , Nickel , Chrome , Aluminum alloy ... ,Stethoscope and so on;-Telecommunication equipments:Telephone,Fax machine,Printer,Walkie Talkie and so on .