FIRST THE KEEL IS STEAMED TO ALLOW IT TO BEND WITHOUT BRAKING THEN ATTACHED WITH SS SCREWS ONLY SO THAT AS IT WARES IT CAN BE REPLACED, A ROUTER IS USED TO CURVE THE EDGES MORE FOR SHOW
THEN THE HOLES ARE FILLED WITH A MIX OF SAWDUST AND GLUE ALLOWED TO HARDEN THEN SANDED MAKING THE SCREW HOLES ALMOST INVISIBLE.