Conveyor systems for continuous material handling in manufacturing lines and factories, including belt conveyors, roller conveyors, and chain conveyors. These transport devices enable automatic conveyance of parts and products between production processes, assembly lines, packaging lines, and inspection processes for efficient logistics. Available in various drive types including belt-type, roller-type, screw-type, and vibration-type, as well as special configurations like curved conveyors and inclined conveyors. Includes specification-specific products such as speed-controlled units and stainless steel food-grade models. Distinguished from mobile transport equipment like forklifts and carts, and lifting equipment like cranes and hoists, these are fixed continuous conveying systems.