婷婷五月天丁香五月天|国产dvd自拍无码在线|日韩不卡免费视频网|亚洲亚码一二区caob3344

This series of grinding machine is a high-precision automatic CNC machining equipment for grinding wheel diameter of 16-500mm and  height  200mm max. Equipped with automatic tool setting and automatic compensation function, it has the characteristics of good grinding quality and high work efficiency.