... Engraving Machine Product Features:1. Able to mark all metal materials, and most non-metallic materials, such as ceramic, plastic ... , BMP, JPEG. Support for auto-coding, serial number, batch number, date, bar code and two-dimensional codes ... , hardware, tools, accessories, sanitary ware, ceramic plastic, PVC, phone keypad, electronic components, integrated circuits ... . Green Laser Engraving Machine