Mint-made errors are called "type-2 blanks (or planchets)" after an upending mill adds uniform, rounded rims. Type-2 blanks may also be considered striking errors as they are prepared correctly, but are released without having been struck. A misfeed can occur when the metal strip is fed through the blanking machine. The punches sometimes overlap the leading edge of the metal producing a straight clip. Sometimes, the punches strike an area of the strip which overlaps the hole left by the previous strike producing a curved clip. Sometimes punches strike the irregular trailing edge of the metal strip producing irregular clips. Coins are
Metal furniture Iron is subject to corrosion at the hands of the moisture and air. Stainless Steel is used very extensively for most modern interior furnishings involving metal. Many hinges, slides, supports and body pieces are composed of Stainless. It has a high tensile strength, allowing it to be applied using hollow tubes, reducing weight and increasing user accessibility. Aluminum is a light and corrosion resistant metal,and to take advantage of these qualities, it is heavily utilized for stamped and cast furniture, especially in the category of molded chairs. Aluminum atoms form an outer layer of Aluminum Oxide, which prevents the internal