They can be, but that's a difficult question.
There are a wide variety of rifles from the 1891, 1895, 1916 Short Rifles to the fifties FR7 and FR8.
Also in at least 3 different calibres and manufactured in Oberndorf, La Coruna, Oviedo; possibly places I can't remember.
So it's a bit difficult to say what quality an individual rifle is.