CHATTANOOGA, Tenn., Dec. 7 /PRNewswire/ -- Heil Trailer International, a Dover Corporation (NYSE: DOV) company and the world leader in tank trailer manufacturing, today announced that it has purchased Kalyn/Siebert, Incorporated, the Texas-based specialty truck trailer manufacturer, effective December 5, 2000.

Kalyn/Siebert, located in Gatesville, Texas, is a leading manufacturer of high-quality, heavy-duty customized truck trailers for commercial and U.S. government/military customers. Kalyn/Siebert has over 200,000 square feet of production space and produces a broad spectrum of specialty trailers. Excluded from this sale was Kalyn/Siebert's affiliate operation, Kalyn/Siebert, Canada, Inc., located in Trois-Rivieres, Quebec, Canada.

"This acquisition will provide synergies for both Heil Trailer International and Kalyn/Siebert by enhancing our growth strategies through product diversification and expansion of Kalyn/Siebert into their niche markets," said Bob Foster, President of Heil Trailer International. "We continue to broaden our core business in the trailer industry through more diversified offerings and look forward to growing the well respected name of Kalyn/Siebert."

Heil Trailer International has its corporate headquarters in Chattanooga, Tennessee, with manufacturing and service facilities in North and South America, Asia, and Europe. Heil is the largest and most diversified producer of aluminum, stainless steel and steel tank trailers for liquid and dry bulk product transport in the world. More information on Heil Trailer International can be found on the Heil web site at http://www.heiltrailer.com.

This press release contains forward-looking statements regarding future events and the performance of Dover Corporation that involve risks and uncertainties that could cause actual results to differ materially including, but not limited to, failure to achieve expected synergies, failure to successfully integrate acquisitions, failure to service debt, failure to sell non-core properties, including without limitation, as a result of the failure to obtain regulatory approvals or of conditions to closing to occur, economic conditions, customer demand, increased competition in the relevant market, and others. Dover Corporation refers you to the documents that it files from time to time with the Securities and Exchange Commission, such as the Form 10-K, Form 10-Q and Form 8-K, which contain additional important factors that could cause its actual results to differ from its current expectations and from the forward-looking statements contained in this press release. SOURCE Dover Corporation

CONTACT: David S. Smith, Vice President of Dover, 212-922-1640/