EXHIBIT 3.21


Prescribed by:                              Charter #
SHERROD BROWN                                         -------------------------
Secretary of State                          Approved by      B.G.D.
                                                        -----------------------
                                            Date             8/6/84
                                                 ------------------------------
                                            Fee              85.00
                                                 ------------------------------


                            CERTIFICATE OF AMENDMENT
                               (BY SHAREHOLDERS)
                      TO THE ARTICLES OF INCORPORATION OF
                       DEFIANCE PRECISION PRODUCTS, INC.

         JAMES W. GILLIS who is President and MICHAEL D. SHEA who is Secretary
of the above named Ohio Corporation for profit with its principal location at
733 Perry Street, Defiance, Ohio 43512, do hereby certify that:

         An action by all of the shareholders was taken without meeting in
accordance with Ohio Revised Code Section 1701.54 wherein the following
Resolution was adopted to amend the Articles:

     RESOLVED, that the Articles of Incorporation are hereby amended to read as
     follows:

         FIRST:  The name of the Corporation shall be DEFIANCE PRECISION
                 PRODUCTS, INC.

         SECOND: The location of its principal office is in the City of
                 Defiance, Defiance County, Ohio.

         THIRD:  The purpose for which it is formed is to engage in any lawful
                 act or activity for which corporations may be formed under
                 Section 1701.01 to 1701.98, inclusive, of the Ohio Revised
                 Code.

         FOURTH: The maximum number of shares of all classes which the
                 Corporation is authorized to have outstanding is one thousand
                 five hundred (1,500) shares, consisting of one thousand (1,000)
                 common shares with par value of One ($1.00) Dollar per share
                 and five hundred (500) preferred shares with a par value of One
                 Thousand ($1,000.00) Dollars each.

                 The express terms and provisions of the shares of each of said
                 classes, including the powers, preferences, and rights thereof
                 and the relevant, participating, optional or other special
                 rights or privileges of, and the qualifications, limitations or
                 restrictions on, the rights of the holders of the shares of
                 each class, are as follows:

                                PREFERRED STOCK

                 (a) The holders of the preferred shares shall not be entitled
                 to receive any dividends.

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                 (b) Upon any dissolution, liquidation, or winding up of the
                 Corporation, the holders of preferred shares shall be entitled
                 to receive, before any payment shall be made to the holders of
                 common shares, the sum of One Thousand ($1,000.00) Dollars per
                 share. The consolidation or merger of the Corporation at any
                 time, or from time to time, with any other corporation or
                 corporations, or a sale of all or substantially all of the
                 assets of the Corporation, shall not be construed as a
                 dissolution, liquidation, or winding up of the Corporation
                 within the meaning hereof.

                 After payment of the full preferential amounts aforesaid, the
                 holders of preferred shares shall not be entitled to
                 any further participation in any distribution of the assets or
                 funds of the Corporation, and the remaining assets and funds of
                 the Corporation shall be divided and distributed among the
                 holders of the common shares then outstanding according to
                 their respective interests.

                 (c) Twenty (20%) percent of the outstanding preferred shares
                 shall be redeemed by the Corporation during the sixth (6th)
                 year after date of issue; the Corporation shall annually
                 thereafter retire twenty (20%) percent of the then outstanding
                 preferred shares until all of the preferred shares are retired.
                 The date of redemption, as stated herein, shall be set by the
                 Board of Directors, upon not less ten (10) days prior written
                 notice to the holders of record of the preferred shares to be
                 redeemed, at One Thousand ($1,000.00) Dollars per share. If
                 such notice is given by mail, it shall be deemed received by
                 the shareholder from whom redemption is to be made when
                 deposited by the Corporation in the mail, registered, postage
                 prepaid, addressed to the last known address of such
                 shareholder. If less than all of the outstanding preferred
                 shares are to be redeemed, the redemption may be made either by
                 lot or prorata or by such other method as the Board of
                 Directors in its discretion may determine, including, without
                 limitation of the foregoing, the right to designate which
                 shareholder shall be required to surrender any part or all of
                 the preferred shares owned by him. If such notice of redemption
                 shall have been duly given and if, on or before the redemption
                 date specified in such notice, all funds necessary for such
                 redemption shall have been set aside so as to be available
                 therefor, then notwithstanding that any certificate for shares
                 so called for redemption shall not been surrendered for
                 cancellation, all rights with respect to such preferred shares
                 shall forthwith on such redemption date cease and terminate,
                 except only the right of the holders



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                 thereof to receive the amount payable upon redemption thereof,
                 but without interest.

                 (d) Except as herein otherwise expressly provided, or as
                 otherwise provided by the laws of the State of Ohio, the
                 holders of common shares shall exclusively possess all of the
                 voting power of the Corporation for the election of directors
                 and for all other purposes and the holders of the preferred
                 shares shall have no voting power and no holder thereof shall
                 be entitled to receive notice of any meetings of shareholders.

                                       COMMON STOCK

                 (a) Subject to the preferences, qualifications, limitations,
                 voting rights, and restrictions with respect to the preferred
                 shares of the Corporation as set forth in these Articles, the
                 holders of the shares of common stock shall possess all rights
                 appertaining to authorized shares of the Corporation.

         IN WITNESS WHEREOF, the above named officers, acting for and on behalf
of the corporation, have subscribed their names this 20th dad of July, 1984.




                                       /s/ James W. Gillis
                                       _________________________________________
                                       JAMES W. GILLIS, President




                                       /s/ Michael D. Shea
                                       _________________________________________
                                       MICHAEL D. SHEA, Secretary








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