兑水 发表于 2009-12-3 10:31:50

ASTM F 1843-1997 膜片式开关贴面上，镜面光泽测量用透明塑料...

F1843-97(2002) Standard Practice for Sample Preparation of Transparent Plastic Films for Specular Gloss Measurements, on Membrane Switch Overlays
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