1 Bladder -- An infection in the bladder is also called cystitis or a bladder infection. 2  Kidneys -- An infection of one or both kidneys is called pyelonephritis or a kidney infection.  Ureters -- The tubes that take urine from each kidney to the bladder are rarely the only site of infection.
Top 10 facts about the world. Nubuck is a type of leather with a soft, velvety surface and is some of the most expensive leather to purchase. Unlike the less expensive suede, this type of leather is far more durable and is excellent for use on items like furniture because it will last much longer than suede.
PU leather, also known as bicast leather or split-leather is a man-made material made with a split leather backing covered with a layer of PU (polyurethane) that is applied to the surface and then embossed.eather is used in part for the backing and is not generally visible in the finish. PU Leather is used for glossy shoes and handbags because the resulting product has a consistent texture that is easier to work with and is easier to clean and maintain.