ygs67 发表于 2017-12-28 21:15:45

ASTM D7990-15

ASTM D7990-15 Standard Test Method for Using Reflectance Spectra to Produce an Index o f Temperature Rise in Polymeric Siding

admin 发表于 2018-1-3 11:04:58

谢谢您的分享，金币已奖励!
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查看完整版本: ASTM D7990-15