秘密研究所

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  1. 秘密研究所 Home Page
  2. Technical norms
  3. ISO 4759-1 - Tolerances for fasteners -- Part 1: Bolts, screws, studs and nuts -- Product grades A, B and C

ISO 4759-1 - Tolerances for fasteners -- Part 1: Bolts, screws, studs and nuts -- Product grades A, B and C

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