Fast Key Services Ltd are the UK's largest supplier of Ronis FM Series for office furniture. This French made range of keys is found on many different types of office furniture, but most commonly desks and pedestal units.. Our easy to use website means that you can simply search for Ronis France FM series keys ranging from FM001 – FM200 used on Office furniture, drawers, desk, lockers filing cabinet, pedestal tambour units by typing in the number that appears on the face of the lock. Our Full range of replacement office furniture keys and locks can be viewed on our website where you can take advantage of our low carriage charges and same day despatch.