乱人伦...国产永久精品大片ww,,,,,,,

Dezhou Hongxin Machine Tool Co., Ltd. specializes in producing all kinds of auxiliary tools for machine tools. TTG type combined boring and rolling head adopts the principle of one rough boring, one fine boring and one rolling. It has the advantages of high efficiency, stability, good guidance, small volume, light weight, etc., simple operation and stable processing. It is suitable for mass production.