... and Holes. Laser Marking Graphics. MARKING FEATURES Alphanumerical MarkingBar-CodingCustom Radial MarkingMedical / Product Device IdentificationCustom Graphics and More...MATERIALS:Carbon Steel, Stainless Steel, Aluminum ... more Dongguan Shenyi Precision Machinery co., ltd. offers quick-turnaround Laser Marking services, providing lasting, clear identification for your components. Our high ...