青青操在线视频,国产丝袜精品观看一二三区,极品尤物在线自慰,国产国拍亚洲

FDMW series of thresher machine is one of the main equipment in the cleaning room of flour mill. Threshing machine plays an important role in removing the impurities of wheat, improving the whiteness of flour and reducing the gray level of flour. This machine has the characteristics of strong striking force, large effective striking area, high efficiency, easy to use and maintenance.