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      Global Test Service
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      Service
      Current location: Home ? Service ? industry sector ? Coatings and packaging materials testing
      SERVICE TYPE
      Coatings and packaging materials testing
      Paint is a kind of organic chemical polymer material that can be coated on the surface of an object with different construction processes to form a solid, strong and continuous film of solid polymer compound. It is usually composed of base material (resin
      2020国产在线视频

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