These special welding tables are very large in size and is placed over a moving surface. They are mainly used in the production of large steel materials.l Some of examples where they can be used are wagons, bodyworks, railings, bridges, hangars, steel processing, structural engineering,cranes etc. These welding tables can be placed over a horizontal flat rail connected with each other in a large hall area. So in this case they will be interfaced with a matching actuator in the floor or placed horizontally on floor. The table and surface are wrapped with Grey Cast Iron or Al/CU rails.