1 Exhibit 21 Subsidiaries of the Registrant Listed below, as of January 3, 1998, are the subsidiaries of the Company and their jurisdictions of organization. All of such subsidiaries are either directly of indirectly wholly-owned by the Company. Certain subsidiaries of the Company have been omitted because, considered in the aggregate as a single subsidiary, they would not constitute a significant subsidiary as of the end of the year covered by this report. Jurisdiction of Name of Subsidiary Organization ------------------ --------------- 100% Owned - ---------- Orange County Metal Works........................................................California Cylinder City, Inc...............................................................Minnesota Commercial Hydraulics Pty., Ltd..................................................Australia Commercial Intertech do Brasil, Ltda.............................................Brazil Commercial Intertech, s.r.o......................................................Czech Republic Commercial Intertech Limited.....................................................England Astron S.A.R.L...................................................................France Sachsenhydraulik Chemnitz GmbH...................................................Germany Commercial Hydraulics S.r.l......................................................Italy Commercial Intertech S.A.........................................................Luxembourg Astron Building Systems (Shenzhen) Co. Ltd. .....................................People's Republic of China Other: (see Note A) - ------ ------------ Hydraulik Rochlitz GmbH .........................................................Germany Commercial Intertech GmbH .......................................................Germany Ultra Hydraulics Limited.........................................................England Note A Commercial Intertech GmbH is 100% owned by Hydraulik Rochlitz - ------ GmbH, which is 100% owned by Sachsenhydraulik Chemnitz GmbH. Ultra Hydraulics Limited is 100% owned by Commercial Intertech Limited.