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Repeated heat forging and heat cycling result in a very fine grain structure. Used by many custom makers, Swamp Rat knives use 52100 steel under the name SR101. Also referred to as 100 Cr 6/102 Cr6 as per ISO nomenclature and conforms to BS grade En31. SUJ2, Japanese equivalent to AISI 52100 steel. DIN 5401
Auctions and zShops evolved into Amazon Marketplace, a service launched in November 2000 that let customers sell used books, CDs, DVDs, and other products alongside new items. As of October 2014, Amazon Marketplace is the largest of its kind, followed by similar marketplaces from Sears, Rakuten, and Newegg.
Although alternative building materials are a newer concept, some buildings have already employed these materials, as well as other tactics, in pursuit of greater sustainability. One such example is the School of Art, Media, and Design located in Singapore. This school has a roof made completely of grass (an example of Earth-sheltering). [4]
Amazon's Best Seller list is a great place to check out which items are filling up shopping carts everywhere. As one of the biggest online retailers in world, Amazon's sales soar when it comes to ...
A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.
Disposable equivalent of the Nikon EN-EL5 Li-ion rechargeable camera battery. [141] 7R31: Kodak K 7R31 538 4 (mercury) 4.5 (alkaline) Cartridge Negative along the side of the body; positive on the front, nose of the battery Approx: H: 11 mm L: 40 mm W: 16 mm Typically a cartridge of three mercury button cells for use in 110 format cameras.
This is a list of insulation materials used around the world. Typical R-values are given for various materials and structures as approximations based on the average of available figures and are sorted by lowest value. R-value at 1 m gives R-values normalised to a 1 metre (3 ft 3 in) thickness and sorts by median value of the range.
It can be assumed that the animal skins were used for clothing throughout the human history, although in the ways that are primitive when compared to the modern processing, the earliest known samples come from Ötzi the Iceman (late 4th millennium BC) with his goatskin clothes made from leather strips put together using sinews, bearskin hat, and shoes using the deerskin for the uppers and ...