countersunk drilling 中文意思是什麼
countersunk drilling
解釋
沉頭鉆- countersunk : 沉孔
- drilling : n 1 鉆孔；【礦物】鉆井；〈pl 〉鉆屑，鉆粉。2 操練，訓練。n 【農業】條播。 ridge [furrow] drilling...
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Cross recessed countersunk head self - drilling tapping screws
十字槽沉頭自鉆自攻螺釘 -
Cross recessed raised countersunk head self - drilling tapping screws
十字槽半沉頭自鉆自攻螺釘 -
Cross recessed countersunk head drilling screws with tapping screw thread
十字槽沉頭自鉆自攻螺釘 -
Cross recessed raised countersunk head drilling screws with tapping screw thread
十字槽半沉頭自鉆自攻螺釘
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