Design-Build Systems Aggregate And Mineral Plants Liberty Construction Services and its sister company GW Systems focus on the design and build of aggregate handling systems. Click the link below for pictures taken from samples of various types of aggregate systems designed and built by our team. View Photo Gallery Coal and Power Generation Systems Liberty Construction Services and its sister company GW Systems are involved in the design and build of coal facilities. Click the link below for pictures taken from samples of various types of systems designed and built by our team. View Photo Gallery Wood Processing and Handling Liberty Construction Services and its sister company GW Systems are involved in the design and build of wood processing plants. Click the link below for pictures and design information associated with wood products and biomass materials. View Photo Gallery Engineered Systems Belt Conveyors Chain Conveyors Belt Feeders Chain Reclaimers Conventional Radial Stacker High Tph Mid Drive Radial Stacker (1 Mb Pdf) Moveable Radial Stacker High Angle Conveyor Tripper Carts Bucket Elevators Jumper Conveyors Radial Log Cranes Drum Debarking & Log Line System