HANSON <HAN> TO SELL BOND'S DELIVERY SERVICE Hanson Industries, the U.S. arm of Hanson Trust PLC, said contracts have been exchanged in London for the sale of Bond's Delivery Service to Rockwood Holdings PLC for about 6.0 mln dlrs in cash. Completion is subject to Rockwood shareholder approval. In its most recent financial year, Bond's which was purchased by Hanson Trust Plc in its acquisition of Imperial Group PLC in April 1986, made 960,000 dlrs pre-tax profit on sales of 13.6 mln dlrs. Net tangible assets are 5.2 mln dlrs, Hanson said.