Overland, with 18 years of international product development experience, has always insisted on the fine research and development of each product to ensure the originality and uniqueness of the product. As a symbolic product of Owenley brand, "Owenley Gray" establishes a set of scientific and technological parameter system for the control and control of ceramic tile gray, and analyses the deep and shallow warmth of color gray tone in design and production by means of data quantification. "Irvine Gray" has 33 degrees of light gray, 55 degrees of medium gray, 75 degrees deep.