PPG Industries, Inc. v. United States, Vitro Flex, S.A. and Cristales Inastillables de Mexico, S.A. 12 December 1991 - World Trade and Arbitration Materials View PPG Industries, Inc. v. United States, Vitro Flex, S.A. and Cristales Inastillables de Mexico, S.A. 12 December 1991 by - World Trade and Arbitration Materials PPG Industries, Inc. v. United States, Vitro Flex, S.A. and Cristales Inastillables de Mexico, S.A. 12 December 1991 1992-02-01 4 1 https://kluwerlawonline.com/api/Product/CitationPDFURL?file=Journals\WTAM\WTAM1992004.pdf World Trade and Arbitration Materials