Here are the Japanese and English wikipedia sites for 製鐵所:
http://ja.wikipedia.org/wiki/製鉄所
http://en.wikipedia.org/wiki/Steel_mill
A steel mill or steelworks is an industrial plant for the manufacture of steel.

"Steelworks" WordWeb definition = A factory where steel is made

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Strategy Identification
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To analyze Nucor's external and internal environment, we have used the 5-forces ... Nucor now started building joist-plants and steel mills and by 1984, ...
www.plu.edu/~matzsc/doc/nucor-case.do

[DOC]
ANALYSIS OF INDUSTRY ENVIRONMENTS
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... firm's positives and negatives in their internal and external environments. .... Finally the steel industry is the scene of intense internal rivalry. ... this has led to the closure of manysteel mills of the traditional variety. ...
210.212.115.113:81/R.%20J.%20Masilamani/.../stratman%20A.I.E..DOC

First managers thoroughly evaluate their firm’s positives and negatives in their internal and external environments.

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Effective environmental management through environmental knowledge ...
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by PS Huang - 2009 - Cited by 8 - Related articles
the first integrated steel mill in Taiwan. After ..... Table 5: Internal and external recycling and the disposal from the steel making process (Payne, 2001) ...
www.sid.ir/en/VEWSSID/J_pdf/92220090104.pdf

http://ejje.weblio.jp/content/計量法
計量法
読み方：けいりょうほう
（名詞） the Measurement Law