serial taps 中文意思是什麼
serial taps
解釋
成套絲錐-
Major product varieties include standard circular screwing dies and manual screwing taps as well as thread tool serial products in combined packages
主要生產品種有公制、英制、美標、德標等標準圓板牙、手用絲錐,及組合套裝螺紋工具系列產品。
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