spring fastener 中文意思是什麼
spring fastener
解釋
彈簧扣-
Plate spring for automobiles, railway vehicles, spiral spring, railway fastener, etc
汽車板簧鐵路車輛螺旋彈簧鐵路扣件等 -
Armature spring fastener
銜鐵簧壓鐵
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