Should be metric.
Winds from the tower are given in True vice Magnetic.
Transition altitude is 600 meters if not specifically published.
Aircraft using feet should conform to the equivalent altitude, e.g. assigned 4500m = fly 14,800ft.
At least that's what the enroute procedures of my Jepp manual says - don't have any real experience flying there.
Bonus animus sit, ab experientia. Quod salvatum fuerit de malis usu venit judicium.