working fastening 中文意思是什麼
working fastening
解釋
臨時固定暫釘-
Fasteners. equipment for working the soil. countersunk head nib bolts for fastening thin wear parts
緊固件.污染環境中用的設備.連接薄的易磨損零件用的帶榫尖頭螺栓
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