Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should In a refurbishment contract worth ú300,000, air-distributionequipment manufacturer TROX has supplied chilled beams for the BBC West One offices and editing studios at Langham Place, London. The company also supplied grilles and diffusers.