2013 4K high-definition projection screen, XY SCREEN projection screen set up production plants in mainland China screen - Guangzhou-Yun audio-visual equipment, base set up in Guangzhou City, Guangdong Province, put into product categories are screen frame, curved screen frame , electric screen, folding screen, easy screen, large-scale projects of electric and projector hanger; curtain material comprises acoustically transparent screen, 3D acoustically transparent screen, metal screen, high-definition soft screen, high-definition glass screen and so on. The company's main product projection screen, projector screen is mainly used in home theater, office culture, education, etc., welcome customers to consult. DLP large screen display system as indoor all-round display 3D video images media metal projection screen, high brightness, image clarity, color, splicing gap, long working life, a wide viewing angle and easy maintenance and many other advantages, in each row Each industry can play a good role, such as police dispatch command system, through monitoring command system, military operational command system, post information and communication systems, large-scale command system of Posts and Telecommunications, electricity coal mine safety monitoring system and a variety of business users. 2013, XY SCREEN projection screen set up production plants in mainland China screen - Guangzhou-Yun audio-visual equipment, base set up in Guangzhou City, Guangdong Province, put into product categories are screen frame, curved frame screen, electric screen, Folding screen, easy screen, large-scale projects of electric and projector hanger; curtain material comprises acoustically transparent screen video bar wholesale projection screen, 3D acoustically transparent screen, metal screen, high-definition soft screen, high-definition glass screen and so on. The company's main product projection screen, projector screen is mainly used in home theater, office culture, education, etc., welcome customers to consult. Definition sphere: all points from the point of space equal to a fixed length graphic composition called a ball. Spherical surface is a continuous three-dimensional graphics, surrounded by a spherical geometry called sphere. Ball sphere surface composition is a surface projection screen video bar, the surface is called spherical. Balls and circle similar, there are also a center called the Globe. Stars, especially the "Earth." Mathematics semi-sphere to the basic concept of a sphere having a diameter of its rotation axis, a rotation is called a spherical surface. Surrounded by spherical geometry is called a sphere, called balls. The center is called the center of the sphere semicircle. Movies & Bar projection screen wholesale | Daqing video bar projector screen | male cloud audiovisual equipment provided by the Guangzhou-Yun audio-visual equipment. Guangzhou-Yun audio-visual equipment (www.xy-screen.com) strong, credible, in Guangzhou film screening equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead male cloud audio-visual equipment and you hand into the brilliant, for a better future!