ASTM A888 Standard 1.5 ", 2 ", 3 ", 4 ",5 ", 6 ",8 ",10 ",12 ", 15"
CSA B70 Standard 1.5 ", 2 ", 3 ", 4 ",5 ", 6 ",8 ",10 ",12 ", 15"
EN877 Standard DN40, DN50, DN70, DN100, DN125, DN150, DN200, DN250, DN300
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