无码人妻精品一区二区三区东京热_成人黄色小说网站_国产又黄又刺激又高潮的网站_巨大黑人video_无码一区二区三区在线_中文字幕日韩专区

The NH120 double-tapered roller mixer uses two tapered rollers to crush and mix the abrasives, which can effectively eliminate the rolling and heating of the materials during the rolling process. The mechanical transmission adopts the worm gear method, and the large worm wheel made by aluminum-based rare earth alloy material, which has good wear resistance and durability.