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  1. 真空包裝袋 相關

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  2. 過去一個月已有 超過 100 萬 位使用者造訪過 uline.com

    Thousands of poly bag sizes in stock. Many thicknesses, colors and styles available. Flat, gusseted, tubing and much more. Depend on Uline for all your packaging materials.

    • Plastic Grocery Bags

      Economical plastic bags for

      groceries, take-out and more.

    • Poly Bags

      Over 1,200 sizes of flat open-end

      poly bags in stock. Heat sealable.

    • Gusseted Bags

      Fitted bottom and expandable sides

      form to the shape of your product.

    • Paper Shopping Bags

      Give your customers sturdy paper

      shopping bags with handles.

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  1. Vacuum packing is a method of packaging that removes air from the package prior to sealing. This method involves placing items in a plastic film package, removing air from inside and sealing the package. [1] Shrink film is sometimes used to have a tight fit to the contents. The intent of vacuum packing is usually to remove oxygen from the ...

  2. Polyethylene terephthalate (or poly (ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P ), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins. [5]

    • (C₁₀H₈O₄)ₙ
    • 10–50 kg/mol, varies
    • > 250 °C (482 °F; 523 K) 260 °C
    • Practically insoluble
  3. A black carbon fibre (used as a reinforcement component) compared to a human hair. Composites are formed by combining materials together to form an overall structure with properties that differ from that of the individual components. A composite material (also called a composition material or shortened to composite, which is the common name) is ...

  4. Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene. Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly ...

  5. en.wikipedia.org › wiki › WikiWiki - Wikipedia

    For other uses, see Wiki (disambiguation). Editing display showing MediaWiki markup language. A wiki ( / ˈwɪki / ⓘ WI-kee) is a form of online hypertext publication that is collaboratively edited and managed by its own audience directly through a web browser. A typical wiki contains multiple pages for the subjects or scope of the project ...

  6. en.wikipedia.org › wiki › ThylacineThylacine - Wikipedia

    Thylacinus rostralis De Vis, 1893 [11] The thylacine ( / ˈθaɪləsiːn /; binomial name Thylacinus cynocephalus ), also commonly known as the Tasmanian tiger or Tasmanian wolf, is an extinct carnivorous marsupial that was native to the Australian mainland and the islands of Tasmania and New Guinea. The thylacine died out in New Guinea and ...

  7. en.wikipedia.org › wiki › 00 - Wikipedia

    0 (zero) is a number representing an empty quantity. Adding 0 to any number leaves that number unchanged. In mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 has the result 0, and consequently, division ...

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