KALMAR, Sweden (June 11)—Trelleborg A.B. will invest $5.5 million in the coming 10 months to increase production capacity for ·DuraLamÃ¶, a proprietary rubber-steel laminated engine-compartment noise-suppression product. DuraLam—from "durability" and "laminated"—was invented and developed by Trelleborg Rubore A.B., a subsidiary company based in Kalmar. Since its introduction two years ago, this product has found use on numerous passenger car and trucks globally, Trelleborg said, without naming specific vehicles. The investment will go principally to a 54,000-sq.ft. building at Rubore's Kalmar site, which will house a new twin-belt heat-treatment press, Trelleborg said. The material can be processed into various shapes using steel processing, Trelleborg said. It currently is being used to make oil pans, valve covers, transmission covers and other items.