Report - CastProduct - Komachine...BS 1414 BS 1873 BS 1868 Size 2~20", 24" 22" 22" and larger Nace valves NACE HARDNESS API 600 HARDNESS Max. HRC 22 ㅡ HB 237 ㅡ Min. 300 HB ㅡ ㅡ ㅡ Max.

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