EXHIBIT 15


PRECISION CASTPARTS CORP. AND WYMAN-GORDON COMPANY ANNOUNCE
EXTENSION OF TENDER OFFER FOR WYMAN-GORDON COMPANY COMMON STOCK

PORTLAND, Oregon and GRAFTON, Massachusetts - November 1, 1999 - Precision
Castparts Corp. (NYSE:PCP) and Wyman-Gordon Company (NYSE:WYG) today announced
that the expiration date of the previously announced $20.00 per share cash
tender offer by Precision Castparts Corp. subsidiary, WGC Acquisition Corp., for
all outstanding shares of common stock of Wyman-Gordon Company has been extended
until midnight, New York City time, on Tuesday, November 30, 1999; provided,
however, that if the Federal Trade Commission (FTC) formally approves the
Agreement Containing Consent Orders discussed below prior to November 15, 1999,
the expiration date of the tender offer will be the date which is ten business
days immediately following the announcement of such approval.

As previously announced, Precision Castparts Corp., Wyman-Gordon Company and the
FTC staff have agreed on the terms of an Agreement Containing Consent Orders
pursuant to which Precision Castparts Corp. and Wyman-Gordon Company would
divest Wyman-Gordon's large cast parts operations in Groton, Connecticut, and
its titanium casting operations located in Albany, Oregon. The FTC staff has
recommended approval of the Agreement Containing Consent Orders by the FTC.
There can be no assurances that the FTC will approve the Agreement Containing
Consent Orders or as to the timing of any such approval.

As of November 1, 1999, approximately 29,850,000 shares of common stock of
Wyman-Gordon Company had been tendered in the tender offer. This constitutes
approximately 88.4% of Wyman-Gordon Company's outstanding shares as of the
commencement of the tender offer.

Precision Castparts Corp. is a worldwide manufacturer of complex metal
components and products. Wyman-Gordon Company is a leader in forgings,
investment castings, and composite structures.

This press release contains forward-looking statements based on current
expectations that are covered under the "safe harbor" provisions of the Private
Securities Litigation Reform Act of 1995. Actual results and events related to
the transaction may differ from those anticipated.

Contacts:    Dwight Weber, Precision Castparts Corp. - 503-417-4855
             Denis Poirier, Wyman-Gordon Company - 508-839-8224