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API 5CT, Warren, OH License #0856
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API 5L, Warren, OH License #0588
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API 5L, Wheatland, PA License #0080
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Buy America and Buy American Acts Letter
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California Proposition 65 Compliance
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Conflict Minerals Statement
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Energy Tubulars Brochure
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HRC Origin Letter
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ISO 9001:2008 Certification (Warren, OH)
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ISO 9001:2015 Certification (Wheatland, PA)
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ISO/TS 16949:2009 Certification (Niles, OH)
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LEED Letter
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