English: shell scheme 
Welsh: cynllun cragen
Subject: Bwyd
English definition: A shell scheme is based on a modular system of poles and panels that can be configured to suit any size of exhibition stand or venue. The shell scheme system allows exhibitors to simply turn up, mount their own graphics using the walls provided and set out their equipment. We can provide shell scheme packages for any size exhibition or event in any part of the world. We work with a number of international associate companies to provide this service overseas, at all times giving a full supporting project management service. We would be pleased to quote any shell scheme system or package for any event worldwide.
Welsh definition: Math o stondin syml, sylfaenol, wag, lle mae modd i'r arddangoswyr ei addurno eu hunain.
English context: Stand in a shell scheme format.
Welsh context: Stondin ar ffurf cynllun cragen.