knurled screws 中文意思是什麼

knurled screws 解釋
滾花平頭螺釘
  1. Knurled thumb screws with waisted shank

    滾花頭不脫出螺釘
  2. General purpose knurled thumbs screws

    通用滾花蝶形螺釘
  3. Knurled thumb screws

    滾花高頭螺釘
  4. Knurled screws with small head

    滾花小頭螺釘
  5. Knurled thin thumb screws

    滾花扁型螺釘
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