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Specification: ASTM B338/ASME SB338, ASTM B337/ASME SB337, ASTM B861/ASME SB861, ASTM B862/ASME SB862 Grade: Gr.1, Gr.2, Gr.3, Gr.7, Gr.9, Gr.11, Gr.12, Gr.16, Gr.17 Size: size range for seamless style: OD2.
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