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API 20e Heavy Hex Nut A194 2h 2hm 7L

API 20e Heavy Hex Nut A194 2h 2hm 7L
    Place of Origin:  Zhejiang, China (Mainland)  Material:  35CrMoA, 35CrMo, 30CrMoA, 30CrMo, 42Cr2MoA, 42Cr2Mo;  ...

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