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角木

  • 网络Hornbeam
角木角木
  1. GB/T102-1986六角头木螺钉

    Hexagon head wood screws

  2. 折角、呆木和舭龙骨对拖船横摇性能的影响

    Effect of Chine , Deadwood and Bilge Keel on Roll Characteristics of Tugs