ygs67 发表于 2016-2-24 13:58:26

ASTM D5991-09

ASTM D5991-09 Standard Practice for Separation and Identification of Poly(Vinyl Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake.

admin 发表于 2016-2-25 16:05:21

谢谢您的分享,金币已奖励!

fgh222 发表于 2017-9-13 14:16:33

感谢分享,谢谢了                           
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