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Mar28th

API 2H Grade 50,API 2H Gr 50,API 2H-50N,API 2H-50,API 2H Gr 50

API 2H Grade 50,API 2H Gr 50,API 2H-50N,API 2H-50,API 2H Gr 50,

 

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Mar28th

API 2H Grade 42,API 2H Gr 42,API 2H-42N,API 2H-42,2HGr42

API 2H Grade 42,API 2H Gr42,API 2H-42N,API 2H-42 Adopt Standard: API Specification 2HAPI steel grade:API 2H Grade 42API 2H Grade 50 API 2H Grade 42 steel gradeAPI 2H Grade 42 is a carbon man