my @array = (
  {TYPE =>  "hole", SIZE => 126, STEP =>   "pcb", COMP =>  "none"},
  {TYPE =>  "hole", SIZE =>  93, STEP =>   "pcb", COMP =>  "none"},
  {TYPE => "chain", SIZE =>  96, STEP => "array", COMP => "right"},
  {TYPE =>  "slot", SIZE => 130, STEP => "panel", COMP =>  "left"},
);