... QL CNC Series Professional Automatic Laser Welding Machine 200W-300W for Advertising Words QL300/QL200 CE for Sale Introduction in detail1. ... word industry,special king-size light path,arbitrary rotation for 360,higher flexible range;4.No protuberant welding spot ... parts adopted in the whole machine3.German technology, maintainence for whole life4.Adopt high-power laser power devices5.Continuous work ...