可以免费看黄的网站,在线毛片网站,亚洲成人在线视频网站,我要看欧美精品一级毛片,成人高清免费,久草在线免费,色淫视频

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.