Comprehensive category of packaging machinery utilizing specialized packaging technologies beyond standard filling, sealing, and labeling machines, including vacuum packaging machines, gas-filled packaging machines, tray sealing machines, blister packaging machines, shrink packaging machines, and stretch packaging machines. Handles specialized machinery that meets advanced packaging requirements according to product characteristics such as quality preservation for food, pharmaceuticals, electronic components, and industrial products, special shape accommodation, moisture-proof, dust-proof, and sterile packaging. Equipment group that realizes high value-added packaging processes including vacuum functions, inert gas replacement, heat shrink film processing, and simultaneous forming and packaging.