Their bark and form are so close in characteristics they have to be separated by cutting a small hole in the bark crevasse to expose the inner bark. Black oak will have bright orange to yellow, very bitter-tasting inner bark. Shumard oakâs inner bark is a medium brown.
Leatherette is a form of artificial leather, usually made by covering a fabric base with plastic. The fabric can be made of a natural or a synthetic fibre which is then covered with a soft PVC layer. Leatherette bound books and 20th century cameras are good examples of leatherette.
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.