Business Directory Logo ATW manufactures shrink wrap machines, including shrink tunnels, L-Sealers, bar sealers which utilize cost effective shrink wrap film rolls, shrink tubing and shrink bags for both small and large businesses. ATW sells and services bag sealers and impulse sealers for any type of poly bag, poly tubing, including sealers with cutter knives, and hot wire bag trimmers. We stock both food grade PVC shrink film and polyolefin (cryovac type) shrink wrap film in rolls. Visit site »