塑膠部件的「熔合線(welding line)」是塑膠射出的必然產物，又稱為結合線、接合線、熔結線，它是由兩股 […]
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長度換算: 1 µm = 39.37 µin 1 µin = 0.0254 µm 1 mil = 25.4 µm 1 mil = 1/1000 in = 1000 µin 1 mm = 39.37 mil
