So far as I'm aware, Wylex is the only manufacturer still making them.
One good thing about the Wylex "Standard" range units is that that they've kept the same basic design for years (decades), so it's easy to change an older Wylex panel with these for cartridge or MCBs.
The IEE recognizes that the rewireable fuses take a lot more to blow, and requires lower ratings for cables fed by such fuses.