Custom industrial shrink packaging machinery, namely, semi-automatic and fully-automatic L-sealers, continuous side sealers, heat tunnels, multi-packer bundlers, special application shrink-strap-label systems; OEM and aftermarket machine parts for use in shrink packaging machines, namely, conveyor belts, roller conveyors, heater spring, gear lever knobs, motors, servo motors, sealing knives, sealing blades, heater elements, compensator, drives, switches, and cold-seal twin trimmers