paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2014-2-1 Pages: 22 Publisher: Standards Press of China in accordance with this standard GB / T l. 1-2009 given rules drafted. The standard proposed by China Machinery Industry Federation. This standard automation systems and integration by the National Standardization Technical Committee (SAC / TC l59) return 1: 3. This standard was drafted: South China University. Guangzhou CNC Equipment Co. Ltd. Beijing University of Aeronautics and Astronautics. Beij.