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 contact Chris Bond on 020 75056816 The Royal S 70 HPS.HI window, from leading building-envelope specialist Schüco International, is a 'push-slide' window, which opens in a similar way to a van door, sliding horizontally on the outside of the structure. This obviates the need for unsightly internal tracks and maximises usable internal space.