The Duple Metsec "R" bodywork was built for various types of single-deckers including Volvo B10M for Singapore Bus Services from 1988 to 1995, and Mercedes-Benz O405.

Production of this bodywork was started by Metal Sections as early as the 1970s and it had been built on some exported Daimler/Leyland Fleetline and Leyland Atlantean for Hong Kong and Singapore, etc.

The "W" bodywork was modified and supplied to a number of Dennis Dragons for Kowloon Motor Bus (KMB), Hong Kong.

After the MCW Metrobus ceased production in 1989, CMB began to receive Dennis Condors with Duple Metsec "W" bodywork.

The body pillars had been re-located and the air ducts for the air-conditioning system were fitted on the ceilings of both saloons, near the side windows.

CMB was the first to buy air-conditioned Dennis Condors with Duple Metsec "W" bodywork due to competition from Citybus and they specified gasket glazing with openings on side windows (the gasket glazing on the prototype air-conditioned Dennis Dragon for KMB had no openings on both sides).

Dennis Specialist Vehicles in partnership with Duple Metsec were the obvious if not only choice at that time as they were already supplying air-conditioned double deckers to the other two franchised operators.

Duple Metsec therefore had to find a third party who would be willing to assemble their body kits on the Dennis Dragon chassis and eventually Salvador Caetano in Porto, Portugal were chosen.

The Hong Kong Air Cargo Terminals Limited received four Dennis Dragons with Duple Metsec "W" bodywork in 1996.

After the transfer of production of DM5000 bodywork to Alexander factory in Falkirk, it was still offered on the left hand drive version of the Dennis Trident chassis.