RB MODEL 35A07Aerial base for British tanks for example: Comet, Churchill...
RB MODEL 35B23Barrel 57mm OQF 6 Pdr Mk.V L/50 for tanks: Crusader Mk.III, Cromwell Mk.I Churchill Mk.III, Churchill Mk.IV
RB MODEL 35B77Barrel 20mm Oerlikon L/70 for AA vehicel Crusader and many others