日本三级中国三级99人妇网站,超碰蜜臀操,淫乱视频国产免费观看 ,口交逼逼逼逼

Innovation, the courage to open up - to lead the replacement of machine parts

By the company technical center Liu Guoqing, production center Li Baoyou design and development of the five-axis CNC grinding machine won the national invention patents. Five-axis CNC grinding machine is a can be installed in the planing, milling, grinding machine tools on the cross-column above the column, such as grinding the cylindrical periphery can be installed at both ends of the machine table bearing power, the other end of the shaft center, Can be achieved relative to the machine table length, beam height, two columns within the minimum range of peripheral grinding; such as the five-axis CNC grinding machine installed on the machine beam above, can be equal to the length of the workstations, wide size Workpiece to achieve five surface grinding.