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2. Ring binder - Wikipedia

   en.wikipedia.org/wiki/Ring_binder

   A ring binder, folded. Ring binders (loose leaf binders, looseleaf binders, or sometimes called files in Britain) are large folders that contain file folders or hole punched papers (called loose leaves). These binders come in various sizes and can accommodate an array of paper sizes. These are held in the binder by circular or D-shaped ...

3. Pozzolan - Wikipedia

   en.wikipedia.org/wiki/Pozzolan

   The improved durability of the pozzolan-blended binders lengthen the service life of structures and reduces the costly and inconvenient need to replace damaged construction. One of the principal reasons for increased durability is the lowered calcium hydroxide content available to take part in deleterious expansive reactions induced by, for ...

4. Bookbinding - Wikipedia

   en.wikipedia.org/wiki/Bookbinding

   Bookbinding is the process of building a book, usually in codex format, from an ordered stack of paper sheets with one's hands and tools, or in modern publishing, by a series of automated processes. Firstly, one binds the sheets of papers along an edge with a thick needle and strong thread. One can also use loose-leaf rings, binding posts, twin ...

5. Sand casting - Wikipedia

   en.wikipedia.org/wiki/Sand_casting

   Sand casting. The cope and drag (top and bottom halves, respectively) of a sand mold, with cores in place on the drag. Two sets of castings (bronze and aluminium) from the above sand mold. Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand —known as casting sand —as the mold material.

6. Loose leaf - Wikipedia

   en.wikipedia.org/wiki/Loose_leaf

   In North America, 3-hole binders for letter-size papers typically have a width of 1/2 inch, 1 inch, 1.5 inches, 2 inches, 3 inches or 4 inches; in ISO system, binders typically have a width of less than 3 cm. “Discbound” loose leaf systems, which uses separate “discs” to hold covers and pages. Staples and Office Depot sell discbound ...

7. Coil binding - Wikipedia

   en.wikipedia.org/wiki/Coil_binding

   Plastic spiral binding is a three-step process: punch, insert, crimp. [citation needed] First, a punch creates holes along the edge of the document. Second, a coil inserter spins the coils through the holes. Third, a pair of coil crimping pliers or a crimping machine is used to cut off the excess coil and crimp the end to prevent the coil from ...