ygs67 发表于 2016-3-15 11:29:46

ASTM E424-71(2007)

ASTM E424-71(2007) Standard Test Methods for Solar Energy Transmittance and Reflectance (Terrestrial) of Sheet Materials

admin 发表于 2016-3-16 17:26:29

谢谢您的分享，金币已奖励！
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