flange bolts (screws) 中文意思是什麼
flange bolts (screws)
解釋
突緣螺絲-
Bolts and screws with external hexalobular driving feature with large flange
大凸緣六角頭驅動螺栓及螺釘 -
Bolts and screws with external hexalobular driving feature with small flange
帶小凸緣的外六角驅動的螺栓和螺釘
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