spring fastening 中文意思是什麼
spring fastening
解釋
彈簧支座-
Arch spring fastening
拱形彈性扣件 -
Glass luminaires ; round hole edges for threaded ring and spring fastening ; connection dimensions
玻璃燈具.螺紋環和彈簧緊固用圓形孔的棱邊.連接尺寸
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