Produce flexible packaging that is easier to open, that ventilates the fruits and vegetables inside, or adds visibility using SEI Laser's Packmaster laser systems for webs from 24-in. to 71-in. wide at speeds up to 1,640 fpm. Add convenience, visibility and breathability to your flexible packaging. Win new business with creative laser perforations and windowing from SEI Laser. SEI Laser offers 40 years of laser expertise proven at more than 6,000 installations worldwide, supported in the US by Matik Inc.