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A pair of well-worn steel-toe shoes A pair of ISO 20345:2004 compliant S3 safety boots. A steel-toe boot (also known as a safety boot, steel-capped boot, steel toecaps or safety shoe) is a durable boot or shoe that has a protective reinforcement in the toe which protects the foot from falling objects or compression. Safety shoes are effective ...
They usually have an iron horseshoe-shaped insert, called a heel iron, to strengthen the heel, and an iron toe-piece. They may also have steel toecaps . The hobnails project below the sole and provide traction on soft or rocky terrain and snow, but they tend to slide on smooth, hard surfaces.
In the U.S., the annual footwear industry revenue was $48 billion in 2012. In 2015, there were about 29,000 shoe stores in the U.S. and the shoe industry employed about 189,000 people. [47] Due to rising imports, these numbers are also declining. The only way of staying afloat in the shoe market is to establish a presence in niche markets. [48]
The shank of a pointe shoe used for ballet is made of flexible materials like leather, plastic, or cardstock, and may have customized length, thickness, and stiffness. Heavy boots such as those used for construction or hiking have far more rigid and durable shanks, often using steel , though contemporary shanks are more commonly made of less ...
Stiletto heels may vary in length from 2.5 centimetres (1 inch) to 25 cm (10 inches) or more if a platform sole is used, and are sometimes defined as having a diameter at the ground of less than 1 cm (slightly less than half an inch). Stiletto-style heels 5 cm (2.0 in) or shorter are called kitten heels. [citation needed]
The expanded graphite can be used to make graphite foil or used directly as a "hot top" compound to insulate molten metal in a ladle or red-hot steel ingots and decrease heat loss, or as firestops fitted around a fire door or in sheet metal collars surrounding plastic pipe (during a fire, the graphite expands and chars to resist fire ...