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85grf Dead Weight Dial Micrometer:Φ6.4mm
25grf Pin Gage Dial Micrometer:上測頭尺寸: 7.92x1.09mm,
Pin的直徑:Φ1.09mm,長度:11.1mm
10grf Dead Weight Dial
Micrometer:上下測頭尺寸:9.52x1.98mm
請參考UL1581,Sect250.1~11 280.1~3