Credentials A & A Di Medio & Sons’ reputation for having outstanding expertise and knowledge of the concrete industry needs are continually improving and developing ideas to accommodate the lasting qualities of their products. We are committed to being long term business associates to these companies through guaranteed supply of superior products and service. Some of our clients are: • The Readymix Group CSR LTD • Boral Concrete • Pioneer Concrete • Pronto • Broadway and Frame • Dandy Premix • XL Concrete • Various other local and country concrete service providers.