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strength  arched  panels.  The  panels  are  then  machine seamed together to form an economical and watertight steel  structure. The final shape and strength of the materials used cancels the need for columns, beams, or any other type of   interior   support.   All   of   the   panel-to-panel connections  are  joined  using  an  electric  automatic seaming machine. Because of this, there are no nuts, bolts,  or  any  other  type  of  fastener  to  slow  down construction  or  create  leaks. Once   delivered   to   the   jobsite,   the   “on-site” manufacturing abilities of the machine give the ABM operator  complete  control  of  fabrication  as  well  as  the quality of the building, Training key personnel in the operation  of  all  related  K-span  equipment  is  essential. These  crew  members,  once  trained,  can  instruct  other members  of  the  crew  in  the  safe  fabrication  and erection of a K-span. The following section gives you some, but not all, of the key elements associated with K-span construction. As with all equipment, always refer  to  the  manufacturers’  manuals.