... 3)red lighter black marble laser engraving machine QD-1060 with 60w laser tube:Machine Introduction:1. 60W/80W laser power ... , perfect for engraving work.2. Separable machine body, very popular in stone/marble/granite industry ... , decoration, art crafts, electronics, and electric appliances, etc.Engraving Samples: black marble laser engraving machine QD-1060 with 60w laser tube