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2. Plastic film - Wikipedia

   en.wikipedia.org/wiki/Plastic_film

   Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet". These thin plastic membranes are used to separate areas or volumes, to hold items, to act as barriers, or as printable surfaces. Plastic films are used in a wide variety of applications.

3. Corrugated plastic - Wikipedia

   en.wikipedia.org/wiki/Corrugated_plastic

   Corrugated plastic box used as reusable packaging Corrugated plastic dividers used to pack automotive components A Velomobile enclosed in corrugated plastic. Corrugated plastic or corriboard – also known under the trade names of Correx, Biplex, Cartonplast, Polyflute, Coroplast, FlutePlast, IntePro, Proplex, Twinplast, Corriflute and Corflute – refers to a wide range of extruded twin-wall ...

4. Plastic wrap - Wikipedia

   en.wikipedia.org/wiki/Plastic_wrap

   Common plastic wrap is roughly 0.0005 inches (12.7 μm) thick. [1] [2] The trend has been to produce thinner plastic wrap, particularly for household use (where very little stretch is needed), so now the majority of brands on shelves around the world are 8, 9 or 10 μm thick.

5. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.

6. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   Na 2 (OC 6 H 4) 2 CMe 2 + COCl 2 → 1/n [OC(OC 6 H 4) 2 CMe 2] n + 2 NaCl. In this way, approximately one billion kilograms of polycarbonate is produced annually. Many other diols have been tested in place of bisphenol A, e.g. 1,1-bis(4-hydroxyphenyl)cyclohexane and dihydroxybenzophenone. The cyclohexane is used as a comonomer to suppress ...

7. List of photographic film formats - Wikipedia

   en.wikipedia.org/wiki/List_of_photographic_film...

   2 + 1 ⁄ 2 × 4 + 1 ⁄ 4 in 63.5 × 107.95 mm Like 616 film with wider flanges 117: roll film 1900 1949 2 + 1 ⁄ 4 × 2 + 1 ⁄ 4 in 57.15 × 57.15 mm 6 Like 620 spool with 120 keyslot 118 roll film 1900 1961 3 + 1 ⁄ 4 × 4 + 1 ⁄ 4 in 82.55 × 107.95 mm 3.474-inch spool 119 roll film 1900 1940 4 + 1 ⁄ 4 × 3 + 1 ⁄ 4 in 107.95 × 82. ...