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2. Punched pocket - Wikipedia

   en.wikipedia.org/wiki/Punched_pocket

   Three punched pockets. A punched pocket (UK English), plastic wallet (UK English), poly pocket (UK English), slippery fish (Sussex, England), sheet protector (US English), plastic sleeves (AU English), “page protector” (US English), or sometimes perforated document bag, is a flat, slit plastic bag with a perforated edge used to hold paper documents.

3. Perfboard - Wikipedia

   en.wikipedia.org/wiki/Perfboard

   Top of a copper clad Perfboard with solder pads for each hole. Perfboard is a material for prototyping electronic circuits.It is a thin, rigid sheet with holes pre-drilled at standard intervals across a grid, usually a square grid of 0.1 inches (2.54 mm) spacing.

4. Perforated metal - Wikipedia

   en.wikipedia.org/wiki/Perforated_metal

   Studies have shown that perforated metals help reduce sound levels. [4] Studies have shown that having buildings use perforated metal sheets in front of their façade can bring in one study 29% energy savings (HVAC + Lighting estimated consumption in 1 year) and in the second one 45% energy savings (heating, ventilation, air conditioning).

5. List of food preparation utensils - Wikipedia

   en.wikipedia.org/wiki/List_of_food_preparation...

   Some brushes have wooden handles and natural or plastic bristles, whilst others have metal or plastic handles and silicone bristles. Pastry wheel Cuts straight or crimped lines through dough for pastry or pasta. Peel: Pizza shovel: Used to transfer whole pizzas or dough from surface to surface. Peeler: Potato peeler. Vegetable peeler

6. Perforated hardboard - Wikipedia

   en.wikipedia.org/wiki/Perforated_hardboard

   The holes are used to accept pegs or hooks to support various items, and perforated hardboards are therefore used for purposes such as tool boards in workshops. Peg-Board is an expired trademark used as a brand name by the Masonite Corporation , first used in 1962, [ 1 ] which is often used as a generic term for perforated storage boards made ...

7. Micro perforated plate - Wikipedia

   en.wikipedia.org/wiki/Micro_perforated_plate

   The holes typically cover 0.5 to 2% of the plate, depending on the application and the environment in which the MPP is to be mounted. Hole diameter is usually less than 1 millimeter, typically 0.05 to 0.5 mm. They are usually made using the microperforation process.