Exhibit 3.25

                          CERTIFICATE OF INCORPORATION

                                       OF

                       MATERIAL SERVICE RESOURCES COMPANY


        1.      The name of the corporation is MATERIAL SERVICE RESOURCES
COMPANY.

        2.      The address of the registered office in the State of Delaware is
Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County
of New Castle. The name of its registered agent at such address is The
Corporation Trust Company.

        3.      The nature of the business or purposes to be conducted or
promoted is: To engage in any lawful acts or activities for which corporations
may be organized under the General Corporation Law of Delaware.

        In general, to possess and exercise all the powers and privileges
granted by the General Corporation Law of Delaware or by any other law of
Delaware or by this Certificate of Incorporation together with any powers
incidental thereto, so far as such powers and privileges are necessary or
convenient to the conduct, promotion or attainment of the business or purposes
of the corporation.

        The business and purposes specified in the foregoing clauses shall,
except where otherwise expressed, be in nowise limited or restricted by
reference to, or inference from, the terms of any other clause in this
Certificate of Incorporation, but the business and purposes specified in each of
the foregoing clauses of this article shall be regarded as independent business
and purposes.

        4.      The total number of shares of common stock which the corporation
shall have authority to issue is Three Thousand (3,000); all of such shares of
common stock being without par value.

        5.      The name and mailing address of the incorporator is as follows:



               NAME                 MAILING ADDRESS
               ----                 ---------------

                                 
               David M. Rubin       c/o Gould & Ratner
                                    222 N. LaSalle St.
                                    Suite 800
                                    Chicago, IL 60601


        6.      The corporation is to have perpetual existence.





        7.      In furtherance and not in limitation of the powers conferred by
statute, the Board of Directors is expressly authorized to make, alter or repeal
the by-laws of the corporation.

        8.      Elections of directors need not be by written ballot unless the
by-laws of the corporation shall so provide.

        Meetings of stockholders may be held within or without the State of
Delaware, as the by-laws may provide. The books of the corporation may be kept
(subject to any provision contained in the statutes) outside the State of
Delaware at such place or places as may be designated from time to time by the
Board of Directors or in the by-laws of the corporation.

        No director shall have any personal liability to the corporation or its
stockholders for any monetary damages for breach of fiduciary duty as a
director, except that this Article shall not eliminate or limit the liability of
each director (i) for any breach of such director's duty of loyalty to the
corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (iii) under
Section 174 of the Delaware General Corporation Law, or (iv) for any transaction
from which such director derived an improper personal benefit.

        9.      The corporation reserves the right to amend, alter, change or
repeal any provision contained in this Certificate of Incorporation, in the
manner now hereafter prescribed by statute, and all rights conferred upon
stockholders herein are granted subject to this reservation.

        I, THE UNDERSIGNED, being the incorporator hereinbefore named, for the
purpose of forming a corporation pursuant to the General Corporation Law of the
State of Delaware, do make this certificate, hereby declaring and certifying
that this is my act and deed and the facts herein stated are true, and
accordingly have hereunto set my hand this 9th day of March, 1992.


                                                          /s/ David M. Rubin
                                                          __________________
                                                              David M. Rubin



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