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API 20e1 ASTM A193 B7/B7m Stud and Nuts a

API 20e1 ASTM A193 B7/B7m Stud and Nuts a
   Place of Origin:  Zhejiang, China (Mainland) Material:  35CrMoA, 35CrMo, 30CrMoA, 30CrMo, 42Cr2MoA, 42Cr2Mo;  ...

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