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In 2005, melamine modified phenolic injection molding plastic EA7501J was successfully developed and

time:2018-04-10 Browse number (11122)
  

In 2005, melamine modified phenolic injection molding plastic EA7501J was successfully developed and realized industrialization. The product has excellent tracking resistance, arc resistance, and flame resistance, and has been authorized by the State Intellectual Property Office as an invention patent.

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色狠狠色综合久久久绯色AⅤ影视,在线视频一区二区三区,亚洲 小说区 图片区,久久人人视频看看最新网址,国产免费AV片在线无码免费看