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 The 'demi-dome' of London's latest architectural landmark, the Cardinal Place building, was made possible by the Angle Ring Company. Its expertise ensured the extra-long curved-steel sections provided structural strength for the glazed facade.